Liver & Gallbladder Flashcards
Pringle’s Maneuver compresses the following structures
Portal vein
Hepatic artery
Common bile duct
Digitoclasty
Finger fracture of the liver
Segments of the liver
1: Caudate 2 & 3: L lateral 4: L medial 5 & 8: R anterior lobe 6 & 7: R posterior lobe
Venous drainage of the caudate lobe
Drains directly to the IVC (bypasses the Hepatic vein)
The liver synthesizes all clotting factors except:
Factor VIII
Produced in the epithelium
Prothrombin time
Extrinsic Pathway
Factors II, V, VII, X, Fibrinogen
Partial Prothrombin Time (aPTT)
Intrinsic Pathway
Factors II, V, VIII, IX, X, XI, XII
Supplies the Celiac trunk
L Gastric a.
Splenic a.
Hepatic a.
Intrahepatic causes of jaundice
Gilbert’s syndrome
Cringer-Najjar syndrome
Dubin-Johnson/Rotors syndrome
Hepatitis
Measures the synthetic function of the liver
Albumin Clotting factors (aPTT & PT)
Portal pressure
5-10mmHg
Most significant manifestation of Portal HPN
Esophageal varices (Bleeds at 12mmHg)
Congestive hepatopathy due to obstruction to venous outflow
Budd-Chiari Syndrome
Anti-cardiolipin bodies
Leptospirosis
Syphilis
Budd-Chiari Syndrome
Amebic liver abscess
Entamoeba histolytica
Infective stage: cyst
Pathologic stage: trophozoite
Common location of Amebic liver abscess
Superoanterior aslect of the R lobe
Diagnostic test for amebic liver abscess
Fluorescent antibody test
Hydatid cyst
Echinococcus granulosus
US/CT finding of Hydatid cyst
Ring-like calcifications
Dual-phase CT scan finding of Hemangioma
Asymmetrical peripheral enhancement with progressive centripetal enhancement
Risk factor for Hepatic Adenoma
Prior use of oral contraceptives
Most common etiology of liver metastasis
Colonic CA
Rectal CA
Risk factors for Hepatocellular CA
Cirrhosis Hepatitis B or C Alcoholic Hemochromatosis Non-alcoholic steatohepatitis
Triangle of Calot
Superior: Inferior portion of the liver
Medial: common hepatic duct
Inferior: cystic duct
Promotes gallbladder contraction
Vagus
Cholecystokinin
Inhibits gallbladder contraction
VIP
Somatostatin
Regulates flow of bile and pancreatic juice into the duodenum
Sphincter of Oddi
Black pigment stone
Small, brittle, spiculated
Ca bilirubinate, carbonate, phosphate
CI: hemolytic ds & cirrhosis
Brown pigment stones
Soft & mushy
CI: bacterial infections or bile stasis
Charcot’s triad
Fever
Jaundice
RUQ pain
Most common presentation of Bile Duct CA (Cholangiocarcinoma)
Painless jaundice
Most specific tumor marker for the biliary system and pancreas
CA 19-9
Most common site of Cholangiocarcinoma
Hepatic duct bifurcation