Gi Ddx

Front 1

saw tooth
stack of coins appearance
small bowell wall thickening

Back 1

edema
hematoma
crohn's
radiation

Front 2

Distal Stricture

Back 2

Peptic Stricture
Lower Esophageal Ring
Barrett's

Front 3

Muucosal Esophageal Lesions

Back 3

Squamous Papilloma
Adenoma
Glycogenic Acanthosis

Front 4

Intramural Esophageal Lesions

Back 4

Fibrovascular Polyp
Leiomyoma
Granular Cell Tumor
Duplication Cyst
Idiopathic Varix

Front 5

Bull's Eye Lesions

Back 5

Carcinoid
Mets
Kaposis
Lymphoma
Adenocarcinoma
Ectopic Pancreas

Front 6

Low-attenuation abdominal lymphadenopathy differential diagnosis.

Back 6

Whipple’s disease, mycobacterial infection cavitary mesenteric lymph node syndrome, l
ymphoma,
necrotic metastases,
germ cell tumors.

Front 7

DDX Hemangioma

Back 7

Peripheral Intrahepatic Cholangiocarcinoma
Mets

Front 8

RUQ cystic mass

Back 8

Hepatic cyst
Echinococcus cyst
Bronchogenic cyst
Lymphangioma
Diaphragmatic mesothelial cyst

Front 9

differential for a cystic pancreatic mass

Back 9

serous cystadenoma, mucinous cystadenoma, intraductal papillary mucinous neoplasm (IPMN)
pancreatic pseudocysts

Front 10

DDX hypervascular lesion in the pancreas

Back 10

islet cell tumor
solid and papillary epithelial neoplasm
metastatic disease from melanoma, breast carcinoma, renal cell carcinoma, and bronchogenic carcinoma. A potential pitfall could also be a splenic artery pseudoaneurysm

Front 11

DDX calcific areas of high attenuation in the abdomen include

Back 11

dropped gallstones, dropped appendicolith, calcified epiploic appendagitis, dropped surgical clips, and calcified mesenteric lymph nodes.

Front 12

DDX adult intususceptions

Back 12

Polyp,
leiomyoma,
lipoma,
adenocarcinoma,
metastasis,
lymphoma may all cause adult intussusception

Front 13

DDX Gallbladder wall thickening

Back 13

Classic (acalculous or calculous) cholecystitis
Nonbiliary causes of gallbladder wall thickening include cardiac and renal failure, hepatitis, hypoalbuminemia, pancreatitis, and interleukin-2 treatment

Front 14

focal liver lesions that contain fat

Back 14

(lipoma, myelolipoma, xanthoma, hepatic adrenal rest tumor) or rarely contain macroscopically visible fat (adenoma)

hemangiomas never contain fat

Front 15

Benign fat-containing lesions include .

Back 15

focal or geographic fatty change (steatosis), pseudolesions due to postoperative packing material (omentum), adenoma, focal nodular hyperplasia, lipoma, angiomyolipoma, teratoma, hepatic adrenal rest tumor, pseudolipoma of Glisson's capsule, and xanthomatous lesions in Langerhans' cell histiocytosis

Front 16

Malignant liver lesions that can contain fat include

Back 16

hepatocellular carcinoma
primary or metastatic liposarcoma

Front 17

differential diagnosis for bulky gastric tumors

Back 17

gastric lymphoma,
sarcomatous invasion of the stomach,
gastric carcinoma
submucosal lipoma

Front 18

differential diagnosis for gastric GISTs

Back 18

includes other mesenchymal neoplasms, such as true leiomyomas, leiomyosarcomas, schwannomas, neurofibromas, and neuroendocrine neoplasms (solitary gastric carcinoids). Because all of these neoplasms arise in the gastric wall, their imaging features may be similar to those of GISTs

Front 19

Most cases of primary hyperparathyroidism are due

Back 19

solitary parathyroid adenoma

Front 20

ddx entities causing the colon cutoff sign

Back 20

acute pancreatitis, entities that can cause focal colonic narrowing at the splenic flexure include pancreatic and gastric carcinoma, splenic artery hemorrhage, abdominal aortic aneurysm rupture, and postpancreatic stricture.

Front 21

DDX Meckel's Diverticulum

Back 21

Appendicitis, colonic diverticula, acute mesenteric lymphadenitis (clinical differential)
Small intestinal diverticulum
Communicating enteric duplication
Pseudosacculations (Crohn’s disease)

Front 22

differential diagnostic considerations for groove pancreatitis include

Back 22

focal pancreatic adenocarcinoma, focal acute pancreatitis, and true cysts of the duodenal wall.

Front 23

DDX Incidental adrenal mass

Back 23

adenomas account for 50%–80% of such masses, with metastatic disease, pheochromocytomas, adrenal cortical carcinomas, and myelolipomas also not uncommonly observed

Front 24

DDX Obstructive Jaundice

Back 24

Cholangiocarcinoma
Cholelithiasis
Ascending cholangitis
Biliary stricture
Primary sclerosing cholangitis

Front 25

DDX retroperitoneal mass

Back 25

retroperitoneal mass include lymphoma, paraganglioma, metastatic disease, sarcoma, and pancreatic masses such as adenocarcinoma. Other less common considerations can include infectious or inflammatory lymphadenopathy, nerve sheath tumors (schwannomas and neurofibromas), malignant fibrohistiocytoma, extramedullary hematopoiesis, and chordoma.

Front 26

DDX Omental Infarction

Back 26

Hemangioma
Omental infarction
Omental carcinomatosis
Sclerosing mesenteritis (desmoid)
Carcinoid (metastatic to lymph node)

Front 27

DDX lesion in the region of the pancreatic head with fluid and/or gas

Back 27

pancreatic cystic lesions, such as pseudocysts and mucinous cystadenomas,
perforated duodenal ulcer
duodenal diverticulum.

Front 28

DDX Bilateral adrenal gland enlargement

Back 28

adrenal hyperplasia,
adrenal hemorrhage,
adrenal adenomas,
adrenal lymphoma,
metastases,
granulomatous disease.