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43 Cards in this Set
- Front
- Back
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What is the MCC of a constricting lesion of the antrum
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Gastric carcinoma
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What is the ddx of gastric antral strictures
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linitis plastica
crohns gastritis gastric carcinoma |
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Do you see a bird beak and absent stomach bubble in achalasia
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yes
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What is the ddx for a calcified liver mass
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mucinous adenocarcinoma
ovarian serous adenoCA treated lymphoma osteosarcoma chondrosarcoma treated metastatic lesion |
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Does a cecal volvulus have dilated bowel loops distal to the cecum
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no (sigmoid will)
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What is the ddx of multiple strictures of the intra and extrahepatic bile ducts
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sclerosing cholangitis
HIV cholangitis recurrent pyogenic cholangitis Ischemic cholangitis |
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What causes a small calcified spleen and sclerotic changes of the bones
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sickle cell anemia with bone infarcts and autosplenectomy
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What is the two main differential diagnosis for main pancreatic duct dilation
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chronic pancreatitis
IPMT |
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Do benign ulcers project beyond the expected margin of the stomach
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yes
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What are 3 indicators that an ulcer of the stomach is benign
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lesser curve
beyond the contour radiating folds to ulcer margins |
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What do you expect to see in PV thrombosis on CT (tumor thrombus)
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enlarged PV with vessels coursing through the thrombosis
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What is the string and thread sign
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this is vessels coursing through a tumor thrombus of the PV during the arterial phase
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What is the MCC of a sigmoid fistula
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diverticulitis
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What do you see in right sided heart disease on CECT
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the IVC is enlarged and there is reflux of contrast into the IVC (it may be bigger than the aorta)
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What is the ddx of a cyst at the level of the aortic hiatus
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enteric duplication cyst
pseudocyst neuroenteric cyst seroma (if hx of surgery) |
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What is the findings of a foregut duplication cyst on CT f
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fluid density cyst
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What is the findings of a foregut duplication cyst on MRI
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hight T2
low to slightly high T1 |
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If there is cystic structure at the level of the aortic hiatus and there is vetebral involvement what should you suspect
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neurenteric cyst
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What is the ddx of a cystic lesion of the tail of the pancrease
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pancreatic pseudocyst
intraductal papillary mucinous tumor cystic pancreatic adenocarcinoma Mucinous cystadenoma or adenocarcinoma |
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What do you see with in phase and out of phase images of the liver on MRI with iron deposition
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inphase (dark)
out of phase (gets brighter) |
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What are the signs of epiploic appendagitis
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ring sign
engorged vessel (subtle) |
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Where are the common locations of epiploic appendagitis
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sigmoid
transverse colon cecum |
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What is the ddx of a focal solid splenic lesion
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hemangioma
melanoma lymphoma sarcoid phlegmon/abscess mets |
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What is the MC cause of focal solid lesion of the spleen
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hemangioma
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What is the ddx of a gastric polypoid filling defect
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polyp
FB blood clot bezoar mets lymphoma leiomyoma lipolma fibroma ectopic pancreas |
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What are 2 common associations with splenic lesions
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rib fx
pneumothorax |
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What is the ddx of linitis plastica
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Granulomatous infection
(TB)/Crohn’s/Lymphoma Radiation Adenocarcinoma Metastasis-breast |
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What do you see in the lumen of a colonic intussuception
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mesenteric fat and vessels
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What is the classic sign for intussusception on CT
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target sign
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Why is intussusception concerning in adults
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cause of lead point
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Do you worry about small bowel intussusception
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no (unless greater than 3.5cm)
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Where is a common area for abscess to occur in the liver
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posterior portion of right lobe
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What is the ddx of a colonic mass
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cancer
polyp |
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What do you worry about if there is non-enhancement of the pancrea
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necrotizing pancreatitis
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Where does iron deposit in hemohchromatosis
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liver
spleen heart renal cortex |
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What is the big 4 or colonic wall thickening
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pseudomembranous colitis
ischemic inflammatory lymphoma |
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What should be added to the DDX of colonic wall thickening if the pt is immunocompromised
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CMV colitis
typhlitis GVHD |
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What is the ddx of focal gastric wall thickening
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GIST
lymphoma adenocarcinoma |
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What do you recommend if there is a gastric mass
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recommend endoscopy
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What tends to obstruct; adenocarcinoma or lymphoma
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adenocarcinoma
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What is the sandwich sign of lymphoma
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Large LN surrounding mesenteric vessels
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What is the ddx of fatty replacement of the pancreas
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CF
obesity DM chronic pancreatis TPN steriods |
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Why do pt with crohs dz get kidney s tones
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hyperoxalosis (bc of increased resorption)
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