Most Commons Flashcards
MC cause of pneumoperitoneum
Surgery; 2nd MC – PUD perforation
MC location of perforation
Duodenum
MC cause of pneumatosis intestinalis in neonates
NEC
MC association of acute cholecystitis
GB stones (90P95%)
MC cause of emphysematous cholecystitis
Cystic duct obstruction secondary to stones (80%)
MC cause of emphysematous cholecystitis in DM
GB ischemia
MC cause of pancreatic lithiases
Alcohol
MC obstruction lesions of the colon
Sigmoid diverticulitis
MC injured intraperitoneal organ in blunt trauma
Spleen (2nd MC: liver)
MC portion of bowel injured
Duodenum
MC functional abnormality in cricopharyngeal sphincter
Premature closure
MC cause of esophageal perforation
Iatrogenic
MC location of tear in Boerhaave syndrome
Left posterolateral wall (90%)
MC symptom of GERq
Heartburn
MC type of viral esophagitis
HS- I and CM- (also in immunefluorescence)
MC agents causing caustic esophagitis
Tetracycline and doxycycline
MC radiographic findings in radiation esophagitis
Normal
MC granulomatous esophagitis w/o infectious agent
Crohn’s esophagitis
MC cause of esophageal strictures
Reflux peptic esophagitis
MC generic cause of esophageal strictures
Fibrous changes secondary to inflammation or neoplasm
MC esophageal tumor
SCC (90%)
MC benign tumor of esophagus
Leiomyoma
MC radiographic appearance in acute erosive gastritis
Varioloform erosion
MC causative agent of phlegmonous gastritis
Alpha hemolytic streptococci
MC site of tertiary syphilis in the stomach
Antrum
MC cause of gastric volvulus
Abnormalties in the 4 suspensory ligaments (hepatic, splenic, colic and phrenic)
MC described phytobezoars
Unripened persimmons
MC site of gastric diverticulum
Posteromedial
MC vascular abnormalities of the stomach
Varices
MC sites of malignant lymphoma of the stomach
Lower and middle thirds
MC submucosal tumors of the stomach
Leiomyosarcoma and leiomyoma
MC site of duodenal perforation
Anterior, proximal
MC site of gastric perforations
Lesser curvature
MC site of penetration
Pancreas
MC duodenal benign tumors
Adenomas, leiomyomas, lipomas
MC duodenal malignant tumors
Adenocarcinomas; 2nd MC leiomyosarcoma
MC nonspecific inflammatory disease of the bowel
Crohn’s disease
MC site of Crohn’s disease
terminal ileum
MC abnormality in CT 2’ to Crohn’s disease
thickened GI wall
MC site of Behcet’s disease in the western countries
colon
MC cause of enteritis in AIDS
cryptosporidiasis
MC cause of inflammatory disease in the bowel in the 3rd world countries
TB
MC site of adenomas in the small intestine
duodenum>jejunum>ileum
MC benign tumors of the small intestine
adenomatous polyps and leiomyomas
MC location of hemangioma in the small intestine
jejunum
Most reliable sign of diverticulitis
presence of contrast outside the lumen
MC site of Crohn’s disease
ileum
MC site of ischemic colitis
splenic flexure
MC form of amoebiasis
ulcerative rectal colitis
Most important feature for CA in polyps
size
MC benign tumor of the colon and rectum
adenoma ( 2nd MC lipoma, 3rd MC endometrioma)
MC site of argentaffin tumors/carcinoid tumors
rectum
MC cause of intussusseption in the adults
polypoid neoplasm
Most reliable radiographic criterion to differentiate CA from peridiverticular abscess
destruction of the mucous membrane
MC site of stricture formation 2’ to radiation
rectosigmoid and sigmoid
MC cause of acute pancreatitis in the US
biliary tract disease
MC location of aberrant pancreas
stomach
MC benign GB tumor
adenomas
MC source of hematogenous metastasis to the GB
excessive iron burden
MC benign liver tumor
hemangioma, cavernous
MC malignant hepatoma
hepatocarcinoma (75%)
MC locatiuon of bile duct CA
common hepatic duct (2nd MC CBD)
MC benign tumor of the bile duct
adenoma
MC appearance of liver metastasis by MRI
amorphous sign (2nd MC target sign, 3rd -halo, 4th- changed morphology sign)
MC MRI feature of cholangiocarcinoma
biliary dilatation
MC cause of benign strictures of the extrahepatic CBD
surgery
MC site of cholangocarcinoma
upper 1/3 of CBD, hepatic hilar
Most important dilatations of the bile duct
choledochal cyst
MC type of choledochal cyst
Type I (80- 90%)
MC cause of filling defects in the biliary tree
stones
MC parasite in the biliary tree
trematodes/flukes
MC cause of splenic metastasis
melanoma
MC 1’ neoplasms of the spleen
malignant lymphoma and plasmacytoma
MC benign splenic MRI tumors
cysts
MC cause of splenic hemorrhage
trauma, coagulopathy
MC site of GITB
ileocecum
Mc GI disease
acute nonspecific gastroenteritis
MC roundworm especially in children
A lumbricoides
MC opportunistic infection of the GIT
Candida albicans
MMC cause of enteritis in AIDS patients
cryptosporidium
MC cause of acalculous inflammation of the HBT in AIDS
CMV and cryptosporidium
MC complication after Heller esophagomyotomy
reflux esophagitis
MC cause of post cholecystectomy syndrome
retained stones in the biuliary tract
MC site of extraperitoneal infection
anterior pararenal compartments
MC cystic retroperitoneal masses
seromas, lymphpocoeles and urinomas
MC solid retroperitoneal masses
sarcomas, lymphomas and LADPS 2’ to metastases of retrocrural or PAA LNs
MC form of diaphragmatic hernia in infants acquired
esophageal hiatus hernia
MC form of congenital diaphragmatic hernia
Bochdalek foramen hernia
MC form of acquired alimentary tract obstruction in infants
hypertrophic pyloric stenosis
MC malignant neoplasm of the GIT in children
lymphoma
MC radiographic manifestation of pediatric GI effects of AIDS
LADPs (2nd MC hepatosplenomegaly)
MC gut lesion in chronic granulomatous disease
antral narrowing
MC conditions causing gas in the gut wall signaling severe/dangerous disease
NEC, typhlitis
MC 1’ liver tumor in children
hepatoblastoma (2nd MC hepatocellular CA)
MC benign liver tumor
hemangioblastoma, mesenchymal hamartomas and infantile hemangioendotheliomas
MC cause of acute pancreatitis in pediatrics
blunt abdominal trauma
MC GIT masses in the neonate
bowel duplications (enteric cysts)
MC manifestation of a Meckel’s diverticulum
GI bleeding
MC cause of emergency surgery in children
acute appendicitis
MC cause of spontaneous pneumoperitneum
ruptured PUD
MC cause of pancreatic lithiasis
pancreatitis
MC cause for a nojn functioning GB
chronic cholecystitis with stones
MC cause of benign biliary strictures
surgery
MC benign tumor of the esophagus
leiomyoma
MC manifestation of lymphoma
extrinsic compression of mass of nodes
MC disease affecting the esophagus
esophagitis
MC 1’ sarcoma of the stomach
leiomyosarcoma
MC phytobezoars
persimmons seeds
MC cause of filling defects on Barium swallow
retained food particles
MC phytobezoars after surgery for PUD with vagotomy and partial gastric resection
oranges
MC hiatal hernia
sliding or axial type
MC predisposing factor for stomach volvulus
diaphragmatic hernia
MC duodenal segment when peritoneal bands cause obstruction
3rd
MC organic lesion in the upper GIT
duodenal ulcer
MC segment with duodenal ulcers
1st, duodenal bulb
MC cause of pyloric obstruction
duodenal ulcer
MC site of duodenal diverticula
inner side of the descending duodenum close to the ampulla of Vater
MC benign duodenal benign tumor
leiomyoma
MC duodenal portion with CA
2nd portion
MC sarcoma of the duodenum
leiomyosarcoma
MC area with TB
ileocecal
MC neoplasm of the small intestine
leiomyoma
MC area with lymphoma
ileum
MC site of regional enteritis
distal ileum
MC association of potassium deficiencies with ileus
post operative GIT manipulation
MC cause of organic megacolon
adhesions and chronic/recurrent volvulus
Most important sign in pedia patients if no transition zone is demonstrated
colon stasis
MC type of colonic polyp
adenomas
MC segment with diverticula
sigmoid colon
MC site of histoplasmosis in the GIT
colon and distal ileum
MC sites of NEC in the GIT
ascending colon and ileum
