Differentials Flashcards
Hypoechoic Liver Masses
Lymphoma (#1), mets (melanoma, Pancreas Adeno, Cervical, Lung, ?melanoma, GI sometimes)
Echogenic Liver Masses
Hemangioma, Mets (esp mucinous, Colon #1, Ovary, Stomach, RCC, Islet Cell), Focal Fat Infiltration, HCC, adenoma
Shadowing Liver Foci
Ca+ (Mets), Air (PV Gas), Stones, Fat Containing Lesion
Target Lesion in Liver
Mets, HCC, Lymphoma, Abscess
Hypervascular Liver Masses
Renal, Islet Cell, Carcinoid, Melanoma, Breast, Thyroid, Sarcoma, Pheo, Choriocarcinoma, Colon
Calcified Liver Mass
Mets: Mucinous, Breast, RCC, Lung, NB, OSA
Echinococcus, TB/Histo, Old Abscess, Fibrolamellar HCC, Hepatoblastoma
Mucinous Tumors
COBS = Colon, Ovary, Breast, Stomach
GB Comet Tails (552D)
Adenomyomatosis, Cholesterolosis, Emphysematous Cholecystitis
GB Wall Thickening
Cirrhosis, CHF, Hypoproteinemia, GB Cancer, Adenomyomatosis, Hepatitis Cholecystitis, AIDS, ?hemorrhage
GB Sludge (576D)
Fasting, TPN, Hemolysis, Cystic Duct Obstruction, Acute & Chronic Chole
GB Hydrops (551D, 573D)
Obstructed: Stone, Tumor
Nonobstructed: Kawasaki’s, Diabetes, Hyperalimentation, EtOH, Acromegaly, Narcotics, AIDS, Anticholinergics
Echogenic GB (WES Sign)
Stones (Can’t See Back Wall), Emphysematous Cholecystitis (Dirty Shadows, Ring Down Comets), Porcelain GB (Sometimes see back wall)
GB Polypoid Lesion
Polyp (Cholesterol, Adenoma), Cancer, Tumefactive Sludge, Blood Clot, Adenomyomatosis (Adenomyoma)
+Doppler = Cancer, Adenomatous Polyp
Bile Duct Wall Thickening
AIDS, Cholangiocarcinoma, Bacterial & Oriental Cholangitis, PSC
Biliary Duct Filling Defect
Stone & Gas (Shadows), Blood Clot, Tumor, Infectious Debris
Intrahepatic Stones
Recurrent Pyogenic Cholangitis, Sclerosing Cholangitis, Caroli’s Dz
Intrapancreatic Biliary Obstruction
Stone (#1), Pancreatic Adeno, Stricture (Pancreatitis, AIDS)
Suprapancreatic Obstruction
Tumor (Cholangio, Portal LAD), Mirizzi
Hypoechoic Pancreatic Lesion
Adenocarcinoma, Islet Cell, Cystic Neoplasm, Mets, Lymphoma, Focal Pancreatitis, Pseudocyst/aneurysm
Hypoecohic Spleen Lesions
SNAIL = Sarcoid, Neoplasm (Mets), Abscess, Infarct, Lymphoma
Multiple Echogenic Splenic Foci
PCP, Candida (Treated?), TB
Echogenic Renal Cortex (727D)
Glomerulonephritis, Xplant Rejection, SLE, Cortical Necrosis, ATN, ESRD, Diabetes, AIDS
Medullary Nephrocalcinosis (736D)
FHAM HOP = Furosemide, HPT, Acidosis (RTA I distal), MSK, Hypercalcemia (Sarcoid, Milk Alkali, Hypervitaminosis D), Oxalosis, Papillary Necrosis
Cortical Nephrocalcinosis (737D)
COAG = Cortical Necrosis, Oxalosis, Alports, Glomerulonephritis (chronic)
Intratesticular Lesion
Tumor/Mets, Infarct, Abscess, Focal Orchitis, Hematoma, Sarcoid, Simple Cyst, Epidermoid Cyst
Prostate Cyst
Utricle (Midline), Mullerian (Larger), EJ Duct (Paramedian), Seminal Vesicle Cyst