Pathophysiology – Liver Tumors & Gallbladder – Flashcards

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Benign Tumors
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Hemangioma Hepatic Cysts Hepatocellular Adenoma Focal nodular Hyperplasia Hepatobiliary Cystadenoma
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Malignant Tumors
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Metastatic carcinoma Hepatocellular Carcinoma Cholangiocarcinoma Fibrolamellar Carcinoma Angiosarcoma, Lymphoma
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Benign Tumors car arise from
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any cell in the liver
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Cells that are common to forming tumors
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hepatocytes biliary tract blood vessels
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Sonographical appearance
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cystic or solid appearance hemorrhage or fibrosis internal calcifications or capsule well-circumscribed blood-filled faint acoustic enhancement echogenicity can be variable
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Your patient has a positive Murphy's Sign and an elevated WBC count. Which of these signs would you least likely see using ultrasound? a. air in the biliary tree from Empyema/Necrosis b. shadowing stones c. solid mass/lesion d. free fluid from a GB rupture
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air in the biliary tree from Empyema/Necrosis
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Your patient has hemolytic anemia. Which of these tests is least likely to be abnormal? a. RBC b. Hep C c. Total Bilirubin d. Alkaline Phosphatase
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Hep C
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Your patient presents with Charcot's Triad. Which of the following tests is least likely to be elevated? a. cholesterol b. total bilirubin c. alkaline phosphatase d. hematocrit
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Hematocrit
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Of these laboratory tests, which result is the most suggestive of HCC in a patient with cirrhosis? a. positive hepatitis C b. elevated ALT, AST and ALP c. low platelets d. elevated alpha-fetoprotein
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elevated alpha-fetoprotein
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You have just identified gallstones in your patient, who is 30 weeks pregnant. Each of these test will be elevated except: a. alpha-fetoprotein b. alkaline phosphatase c. alanine transaminase d. conjugated bilirubin
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Alkanine Transaminase
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What test can confirm the presence of Hepatocellular Carcinoma? a. unconjugated bilirubin b. AST, ALP, and ALT c. alpha-fetoprotein d. biopsy
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biopsy
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Each of these primary causes of cirrhosis, except: a. PSC b. ALT c. ETOH d. Hepatitis C
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ALT
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Your patient complains of sleeplessness caused by pain and hot flashes. Mostly she hates how waxy her skin has become. Her skin is indeed yellowish, and it's not just the crappy lighting in the hospital. What test has the patient's team ordered that will confirm this finding? a. total bilirubin b. prothrombin time c. alpha-fetoprotein d. aspartate transaminase
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total biilirubin
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Blood urea nitrogen is excreted by the liver so it can then be eliminated from the body by kidneys. If the liver can't convert the toxin urea into ammonia, what condition can a patient develop?
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hepatic encephalitis
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Portal hypertension leads to varices in the abdominal wall and gastrointestinal system. What elevated clotting factor would lead to thrombus (blood clot) obstructing the Portal Vein?
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platelets
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Clinical trials of alpha-interferon have shown some positive results eliminating this severe viral form of Hepatitis from the body, but no vaccine exists.
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HCV
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You will be vaccinated for this viral form of Hepatitis several months before your first clinical rotation.
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HBV
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This viral form of Hepatitis is transmitted by the fecal/oral route.
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HAV
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Your patient has cirrhosis and is in clinic for a liver biopsy. Because of the depleted function of his liver, he has low levels of clotting factors. Which enzyme will be tested to make sure your patient is not at risk of bleeding out during the procedure?
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prothrombin
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You have just discovered your patient has cholecystitis. You prove this by demonstrating the thickened gallbladder wall, free fluid in the gallbladder fossa, and a 7mm stone jammed into the neck of the gallbladder like a cork in a wine bottle. In addition to elevated conjugated bilirubin and white blood cells, she will also have elevated ____.
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alkaline phosphatase
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In severe hepatocellular destruction the aspartate aminotransferase and alanine aminotransferase levels are ____.
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high
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The live converts ___ into ___.
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RBCs, bilirubin
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Elevation of serum (blood) bilirubin results in ____.
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jaundice
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The most common benign tumor of the liver?
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hemangioma
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Hemangiomas are more common in men or women?
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women
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Hemangiomas are typically symptomatic or asymptomatic?
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asymptomatic
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As a result of compression of adjacent structures, ruptures, hemorrhage or thrombosis it is possible for hemangiomas to present with symptoms such as:
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abdominal pain, nausea, vomiting
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In hemangiomas malignant change does or does not occur?
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does not
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Hemangiomas are usually _____cm. If they are greater than ___-___cm they are referred to as "Giant Hemangiomas"
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6-10cm
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It is important to distinguish ______ from other potentially more serious lesions.
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simple cysts
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The prevalence of simple hepatic cysts increases with ____.
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age
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Multiple hepatic cysts also occur in association with adult ____ ____ disease.
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adult polycystic kidney disease
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A history of use of oral contraceptive for over 5 years is present in cases of this benign tumor?
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Hepatocellular Adenoma (HCA)
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A small minority of HCA cases involve men and women using _____.
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anabolic steroids
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This benign tumor has a potential for spontaneous rupture and bleeding that can lead to hemperitoneum and shock.
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Hepatocellular Adenoma
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Most common physical finding for HCA is
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enlarged liver or palpable mass young or middle-aged woman
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HCA's arise on a non-______ liver.
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non-cirrhotic liver
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HCA's occur predominantly in the ____ lobe and are often quite large >___cm
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right 10cm
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The absence of a _______ differentiates HCA from FNH.
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central scar
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The high ____ content of the hepatocytes within HCA results in a hyperechoic mass.
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lipid
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What is the preferred treatment of HCA?
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surgery
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This benign tumor is small and are characterized by a central stellate (star-shaped) scar with radiating septae and with areas of nodularity in between fibrous bands.
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Focal Nodular Hyperplasia (FNH)
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This may be a hyperplastic response of the hepatic tissue to an abnormality of a large blood vessel in the location of the lesion.
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FNH
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Hormonal effects of pregnancy and oral contraceptives cause an increase in the size of this benign tumor but does not initiate it. Name that tumor.
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Focal Nodular Hyperplasia
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What is the second most common benign liver tumor after hemangioma?
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FNH
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FNH is seen mostly in _____ during the ___ and ___ decades of life.
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women 3rd and 5th
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Focal Nodular Hyperplasia is less than ___cm.
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5cm
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Sonographically FNH appear:
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sharply circumscribed lack true capsule globular/lobulated central scar homogeneous hyperechoic or isoechoic
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In a _____ tumor all the components of normal liver are present, but in an abnormally organized manner.
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FNH
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Once FNH is discovered it is important to consider other lesions such as the rare _____ variant of hepatocellular carcinoma.
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fibrolamellar
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This lesion occurs almost exclusively in middle-aged women and has an appearance of a cyst that is lined by mucus-secreting epithelium.
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Hepatobiliary cystadenoma
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Hepatobiliary cystadenoma most commonly presents with ____.
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abdominal discomfort
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Sonographically hepatobiliary cystadenoma demonstrates:
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cystic lesion thick walls septations
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Hepatobiliary cystadenomas can be as large as ___cm.
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25cm
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Hepatobiliary cystadenomas have the potential to undergo malignant change to adenocarcinoma. T/F
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true
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The most common malignant tumor in the liver is _______.
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metastatic
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The incidence of metastatic carcinoma is ___ times greater than that of primary hepatic carcinoma.
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20
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The liver is the ___ most common site of metastases behind the _____.
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2nd lymph nodes
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Virtually all types of cancers except those primary to the ____ can metastasize to the liver.
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brain
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The most common cancers to metastasize to the liver are those from the _____, _____, _____, and _____.
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gastrointestinal tract lung breast melanomas
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The less common cancers to metastasize to the liver are tumors of the _____, _____, and _____.
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prostate, skin thyroid
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Patients with widespread metastatic liver involvement usually have suggestive signs of ____ and _______.
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cancer hepatic enlargement
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These three factors are responsible for the liver being the 2nd most common site of metastases.
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high rate of blood flow size double perfusion by the hepatic artery and portal vein
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Hepatocellular carcinoma accounts for approximately ____% of primary liver tumors.
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80%
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Cholangiocarcinoma accounts for approximately ___-___% of primary liver tumors.
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10-20%
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What is HCC?
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Hepatocellular Carcinoma
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What is the most common primary malignant tumor?
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Hepatocellular Carcinoma
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In the United States and Europe the incidence of HCC is ___-___ per ______ people. The incidence seen in Asia and Africa may be ___x greater.
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3-7 per 100,000 50x
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In high incidence areas HCC is diagnosed in the ___ and ___ decades of life. In the low incidence areas HCC is diagnosed in the ___ and ___ decades of life.
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3rd and 4th 7th and 8th
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In high incidence areas HCC occurs more frequently in ____.
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men
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Though not as common in the United States ____ is actually one of the most common carcinomas in the world.
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HCC
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HCC is predominantly associated with ____ and _____ with HepB or HepC.
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cirrhosis chronic infection
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Any patient with chronic liver disease is at increased risk for developing ____.
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HCC
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In Africa and southern China, aflatoxin B1 (fungal toxin) may lead to ____.
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HCC
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Aflatoxin is a fungal toxin from a fungal organism that grows on improperly stored ____, ____, and ____.
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corn grain peanuts
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In the United States only ___% of patients with cirrhosis develop HCC. However, ____-related cirrhosis patients in the US with has a ___%-___% chance of developing HCC
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5% alcohol-related 40%-50%
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HCC will most commonly present as _____.
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solitary tumor
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HCC has a better prognosis when____.
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it is encapsulated because it does not invade the portal vein and is more readily resectable
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With HCC, ___ ___ ___ occurs in 44% of cases and ____ and ___ ___ invasion occurs in 4% of cases.
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portal vein thrombosis IVC and hepatic vein
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Elevated ___ levels are found in about 70%-80% of patients with HCC.
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alpha-fetoprotein (AFP)
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The presence and persistence of high levels of serum AFP without evidence of a GI tumor strongly suggests ___.
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HCC
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If HCC is untreated most patients will die within ___ to ___ months of diagnosis.
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3 to 6 months
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Common sites for distant metastases for patients with HCC are ___, ___, ___, and ____.
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lung brain bone adrenal gland
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_____ accounts for 10%-20% of primary malignant liver tumors.
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cholangiocarcinoma
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Cholangiocarcinoma is an _____ that arises from the ___ ____ducts.
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adenocarcinoma intrahepatic bile ducts
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Cholangiocarcinoma typically presents in adults in their ___ to ___, and is usually quite large and advanced prior to detection.
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50's to 60's
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_____ is not associated with cirrhosis or chronic hepatitis.
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Cholangiocarcinoma
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Cholangiocarcinoma can be present as a ____, ____, or ____.
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singular nodule multiple nodules diffusely-infiltrative manner
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This rare neoplasm of hepatocellular origin and is distinct from HCC.
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Fibrolamellar carcinoma (FLC)
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FLC only accounts for ___% of all hepatocellular malignancies.
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2%
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This malignant tumor is seen in younger patients, ___ to ___ years of age, mean age of ___.
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5 to 35 23
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Why does FLC have a more favorable prognosis than HCC?
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because FLC is often resectable for potential cure
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The 5 year survival rate is ___% for FLC
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60%
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Serum ___ is not elevated with FLC.
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AFP
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FLC usually presents with:
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large mass 4-17cm lobulated central fibrous scar (may be calcified) satellite nodules may be present
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FLC is usually much larger than this other tumor with a central scar?
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FNH
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This rare malignant hepatic tumor arises from endothelial cells lining blood vessels.
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Angiosarcoma
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For every 30 HCCs diagnoses there is ___ angiosarcoma.
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1
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Grossly, angiosarcoma is an _____ lesion or a ____ micronodular lesion.
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unencapsulated multinodular diffusely infiltrative
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This is a disease of lymphocytes (WBCs).
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lymphoma
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Lymphoma occurs more commonly in middle aged ____.
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men
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Large solitary mass with central fibrosis or necrosis, multiple smaller nodular lesions or hepatomegaly without discrete lesion. What is it?
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Lymphoma
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Organ transplant recipients or AIDS patients are at increased risk for ______.
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Lymphoma
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The ____ is a pear-shaped sac located under the right lobe of the liver, lateral to the quadrate lobe.
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gallbladder
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In adults, gallbladders measure up to ___ cm long and __ to __ cm wide and a volume of about ___ ml.
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10cm 3 to 4cm 50ml
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The gallbladder consists of three parts:
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neck body fundu
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The gallbladder neck connects to the ____.
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cystic duct
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The biliary tract itself has four structural and functional components:
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1. hepatic canaliculus 2. the ductal system from the liver to the duodenum 3. the gallbladder 4. the sphincter of Oddi
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___ ___ are secreted by the liver then stored in the gallbladder for variable periods of time during the interdigestive period before they enter the duodenum.
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Bile salts
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Absorption is passive in jejunum and colon but active in the ____ ____.
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terminal ileum
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Bile salts are synthesized from ____, this is done only in the liver.
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cholesterol
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____ rate of synthesis is determined by the availability of cholesterol and more importantly, by the returning ___ ___ pool.
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Bile salts bile salt
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Only about ___% of bile salts are lost from the intestine to the feces with each circuit.
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5%
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Approximately ___-___ million people in the United States have gallstones. About ___ million new cases of cholelithiasis develop each year.
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16-20 million 1 million
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At least ___% of women and ___% of men over 40 years old have gallstones.
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20% 8%
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There are three types of stones: ____, ____, and ____.
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cholesterol mixed pigment
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____ and ____ account for 80% of stones while ____ accounts for 20% of stones.
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cholesterol and mixed pigment
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Cholesterol is water _____.
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insoluble
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Cholesterol is solubilized by ____.
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bile salts
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Conditions that increase the conditions of ____, increase the formation of stones while conditions that decrease the concentration of ____ also lead to formation of stones.
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cholesterol bile salts
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____, ____, or ____ can affect cholesterol synthesis. ____ can increase biliary sludge, which is a thick mucous material that predisposes to gallstone formation.
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obesity high-caloric diets drugs Pregnancy
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____ stones are more common in Asian countries than western usually due to increased amounts of ___ ___ ___ in the bile.
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Pigment unconjugated insoluble bilirubin
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Any condition that results in hemolysis will flood the blood with ____. Over time this will result in _____ stone formation.
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bilirubin pigment
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____ stones are far more common in the United States.
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Cholesterol
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Predisposing factors for cholesterol and mixed stones are ____, ____, ____, ____, and ____.
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demographics (N. Europe, both Americas) obesity weight loss female sex hormone increasing age
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A helpful pneumonic to remember the risk factors for cholesterol stone formation is the Four F's:
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Fat Fertile Forty Female
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Patients classically develop ___ ___ pain in the ___, which can radiate to the ___ ___. Regardless of the type of gallstone on has.
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sharp episodic pain RUQ right shoulder
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Approximately ___% of patients with acute cholecystitis will need surgical removal of the gallbladder.
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25%
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If a patient has acute cholecystitis the gallbladder becomes filled with ___ and the clinical situation reflects with ___, ___, and elevated ____
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pus fever chills WBC
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African Americans are at high risk for ____ since they have a greater incidence of sickle cell disease.
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pigment stones
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Caucasian women are at higher risk for _____ because high estrogen levels decrease ____ concentrations and because people of N. European descent have genetically higher levels of ______.
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cholesterol stones bile salt cholesterol
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An inflamed gallbladder is tender to palpation, especially during inspiration. This is called?
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Murphy's Sign
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What is empyema?
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pus accumulation
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Complications of Acute Cholecystitis:
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necrosis/gangrene perforation/rupture infection abcess (due to WBS creating pus inside gallbladder) peritonitis shock fistula formation choledocholithiasis
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The most frequently encountered common duct disease are those that result from a gallstone entering the common duct and becoming impacted at the ____.
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Sphincter of Oddi
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If the Sphincter of Oddi is obstructed then there can be a back-pressure to the ____ resulting in ____.
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pancreas pancreatitis
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Gallstones can affect the CBD, a condition called?
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choledocholithiasis
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The most common complication of choledocholithiasis are secondary ___ and ___.
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secondary infection pancreatitis
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Triad of clinical symptoms for cholangitis:
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Charcot's Triad: biliary colic jaundice spiking fevers with chills
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Most pancreatic carcinomas occur where?
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in the head of the pancreas
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The CBD can also be obstructed by ____ or ____.
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pancreatic carcinoma massive lymph node enlargement
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Three clinical stages of cholelithiasis:
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asymptomatic, symptomatic and complicated
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Asymptomatic cholelithiasis is very common and of those ____-____% remain asymptomatic.
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75%-80%
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The preferred management of asymptomatic cholelithiasis is ____.
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watchful waiting
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The gold standard treatment for symptomatic cholelithiasis is _____.
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laparoscopic cholecystectomy
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A chronic progressive cholestatic liver disease characterized by progressive inflammatory destruction of the extrahepatic biliary tree, leading eventually to bile duct fibrosis and cirrhosis is called ____.
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Primary Sclerosing Cholangitis
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Due to its strong association with inflammatory bowel disease, the contention is that there is an underlying immunological disturbance that may be the cause of ____.
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PSC
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About ____ of PSC patients are ____. The median age at diagnosis is ___ to ___ years old.
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2/3 36 to 39
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PSC is strongly correlated with two types of inflammatory bowel disease: _____ and _____.
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ulcerative colitis Crohn's disease
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Diagnosis of PSC is usually made by ____.
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cholangiography
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The classical picture of a beading appearance of the bile ducts, together with several strictures of different length and decreased branching is ____.
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PSC
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As PSC progresses fibrosis increases and the ducts are converted to nodular scars called ___.
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tombstones
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Symptoms of PSC include:
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fatigue pruritus (itching) intermittent RUQ pain bouts of cholangitis with transient jaundice
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Terminal liver failure from PSC can be averted only by ________.
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liver transplant
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Bacterial infection, suppurative cholangitis, is also a well know complication of ___.
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PSC
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____ may occur in up to 10% of patients with PSC. After diagnosis, the overall median survival is reported to be only 5 months.
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Cholangiocarcinoma
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Tumors of the extrahepatic biliary tree down to the level of the ampulla of Vater is called ____.
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Carcinoma of Extrahepatic Bile Ducts
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____ presents as jaundice due to obstruction, preceded by decolorization of the stools, nausea and vomiting, and weight loss.
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Carcinoma of Extrahepatic Bile Ducts
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Mean survival times are ___ to ___ months, regardless if aggressive resection or palliation is performed for Carcinoma of Extrahepatic Bile Duct.
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6 to 18 months
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______ is the fifth most common cancer of the GI tract and occurs more often in ___ and in the ___ decade.
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Carcinoma of the Gallbladder women 7th decade
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In Carcinoma of the Gallbladder gallstones are present in ___% - ___%.
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60-90%
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Risks for gallbladder cancer include: ___, ___, ___, ___, ___, ___, ___, and ___.
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gallstones choledochal cysts anomalous duct junction carcinogens estrogens typhoid carriers porcelain bladder gallbladder polys
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Common sites for seeding are: ___, ___, and ___.
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peritoneum gastrointestinal tract lungs
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Carcinoma of the gallbladder presents with symptoms typically associated with _____.
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Cholelithiasis abdominal pain jaundice anorexia nausea and vomiting
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Why are the following gallstones formed: -cholesterol -mixed -pigment
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cholesterol- increased uptake of cholesterol (at least 80%) and decreased bile salts mixed- must contain at least 20-80% cholesterol, calcium, bilirubin, bile pigments pigment- increased amounts of unconjugated insoluble bilirubin in bile, leading to precipitation of bilirubin
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Definition of cholangitis, how its diagnosed and treated?
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Cholangitis is the inflammation of the Common Bile Duct. Most often caused by bacterial infection from a blockage in the duct. Endoscopic retrograde cholangiopancreatography (ERCP) used to diagnose, and may need a stent. Antibiotic is given for the infection.
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