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GIT Radiology > Most Commons > Flashcards

Most Commons Flashcards

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1
Q

MC cause of pneumoperitoneum

A

Surgery; 2nd MC – PUD perforation

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2
Q

MC location of perforation

A

Duodenum

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3
Q

MC cause of pneumatosis intestinalis in neonates

A

NEC

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4
Q

MC association of acute cholecystitis

A

GB stones (90P95%)

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5
Q

MC cause of emphysematous cholecystitis

A

Cystic duct obstruction secondary to stones (80%)

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6
Q

MC cause of emphysematous cholecystitis in DM

A

GB ischemia

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7
Q

MC cause of pancreatic lithiases

A

Alcohol

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8
Q

MC obstruction lesions of the colon

A

Sigmoid diverticulitis

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9
Q

MC injured intraperitoneal organ in blunt trauma

A

Spleen (2nd MC: liver)

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10
Q

MC portion of bowel injured

A

Duodenum

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11
Q

MC functional abnormality in cricopharyngeal sphincter

A

Premature closure

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12
Q

MC cause of esophageal perforation

A

Iatrogenic

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13
Q

MC location of tear in Boerhaave syndrome

A

Left posterolateral wall (90%)

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14
Q

MC symptom of GERq

A

Heartburn

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15
Q

MC type of viral esophagitis

A

HS- I and CM- (also in immunefluorescence)

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16
Q

MC agents causing caustic esophagitis

A

Tetracycline and doxycycline

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17
Q

MC radiographic findings in radiation esophagitis

A

Normal

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18
Q

MC granulomatous esophagitis w/o infectious agent

A

Crohn’s esophagitis

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19
Q

MC cause of esophageal strictures

A

Reflux peptic esophagitis

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20
Q

MC generic cause of esophageal strictures

A

Fibrous changes secondary to inflammation or neoplasm

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21
Q

MC esophageal tumor

A

SCC (90%)

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22
Q

MC benign tumor of esophagus

A

Leiomyoma

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23
Q

MC radiographic appearance in acute erosive gastritis

A

Varioloform erosion

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24
Q

MC causative agent of phlegmonous gastritis

A

Alpha hemolytic streptococci

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25
Q

MC site of tertiary syphilis in the stomach

A

Antrum

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26
Q

MC cause of gastric volvulus

A

Abnormalties in the 4 suspensory ligaments (hepatic, splenic, colic and phrenic)

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27
Q

MC described phytobezoars

A

Unripened persimmons

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28
Q

MC site of gastric diverticulum

A

Posteromedial

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29
Q

MC vascular abnormalities of the stomach

A

Varices

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30
Q

MC sites of malignant lymphoma of the stomach

A

Lower and middle thirds

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31
Q

MC submucosal tumors of the stomach

A

Leiomyosarcoma and leiomyoma

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32
Q

MC site of duodenal perforation

A

Anterior, proximal

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33
Q

MC site of gastric perforations

A

Lesser curvature

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34
Q

MC site of penetration

A

Pancreas

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35
Q

MC duodenal benign tumors

A

Adenomas, leiomyomas, lipomas

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36
Q

MC duodenal malignant tumors

A

Adenocarcinomas; 2nd MC leiomyosarcoma

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37
Q

MC nonspecific inflammatory disease of the bowel

A

Crohn’s disease

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38
Q

MC site of Crohn’s disease

A

terminal ileum

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39
Q

MC abnormality in CT 2’ to Crohn’s disease

A

thickened GI wall

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40
Q

MC site of Behcet’s disease in the western countries

A

colon

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41
Q

MC cause of enteritis in AIDS

A

cryptosporidiasis

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42
Q

MC cause of inflammatory disease in the bowel in the 3rd world countries

A

TB

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43
Q

MC site of adenomas in the small intestine

A

duodenum>jejunum>ileum

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44
Q

MC benign tumors of the small intestine

A

adenomatous polyps and leiomyomas

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45
Q

MC location of hemangioma in the small intestine

A

jejunum

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46
Q

Most reliable sign of diverticulitis

A

presence of contrast outside the lumen

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47
Q

MC site of Crohn’s disease

A

ileum

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48
Q

MC site of ischemic colitis

A

splenic flexure

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49
Q

MC form of amoebiasis

A

ulcerative rectal colitis

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50
Q

Most important feature for CA in polyps

A

size

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51
Q

MC benign tumor of the colon and rectum

A

adenoma ( 2nd MC lipoma, 3rd MC endometrioma)

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52
Q

MC site of argentaffin tumors/carcinoid tumors

A

rectum

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53
Q

MC cause of intussusseption in the adults

A

polypoid neoplasm

54
Q

Most reliable radiographic criterion to differentiate CA from peridiverticular abscess

A

destruction of the mucous membrane

55
Q

MC site of stricture formation 2’ to radiation

A

rectosigmoid and sigmoid

56
Q

MC cause of acute pancreatitis in the US

A

biliary tract disease

57
Q

MC location of aberrant pancreas

A

stomach

58
Q

MC benign GB tumor

A

adenomas

59
Q

MC source of hematogenous metastasis to the GB

A

excessive iron burden

60
Q

MC benign liver tumor

A

hemangioma, cavernous

61
Q

MC malignant hepatoma

A

hepatocarcinoma (75%)

62
Q

MC locatiuon of bile duct CA

A

common hepatic duct (2nd MC CBD)

63
Q

MC benign tumor of the bile duct

A

adenoma

64
Q

MC appearance of liver metastasis by MRI

A

amorphous sign (2nd MC target sign, 3rd -halo, 4th- changed morphology sign)

65
Q

MC MRI feature of cholangiocarcinoma

A

biliary dilatation

66
Q

MC cause of benign strictures of the extrahepatic CBD

A

surgery

67
Q

MC site of cholangocarcinoma

A

upper 1/3 of CBD, hepatic hilar

68
Q

Most important dilatations of the bile duct

A

choledochal cyst

69
Q

MC type of choledochal cyst

A

Type I (80- 90%)

70
Q

MC cause of filling defects in the biliary tree

A

stones

71
Q

MC parasite in the biliary tree

A

trematodes/flukes

72
Q

MC cause of splenic metastasis

A

melanoma

73
Q

MC 1’ neoplasms of the spleen

A

malignant lymphoma and plasmacytoma

74
Q

MC benign splenic MRI tumors

A

cysts

75
Q

MC cause of splenic hemorrhage

A

trauma, coagulopathy

76
Q

MC site of GITB

A

ileocecum

77
Q

Mc GI disease

A

acute nonspecific gastroenteritis

78
Q

MC roundworm especially in children

A

A lumbricoides

79
Q

MC opportunistic infection of the GIT

A

Candida albicans

80
Q

MMC cause of enteritis in AIDS patients

A

cryptosporidium

81
Q

MC cause of acalculous inflammation of the HBT in AIDS

A

CMV and cryptosporidium

82
Q

MC complication after Heller esophagomyotomy

A

reflux esophagitis

83
Q

MC cause of post cholecystectomy syndrome

A

retained stones in the biuliary tract

84
Q

MC site of extraperitoneal infection

A

anterior pararenal compartments

85
Q

MC cystic retroperitoneal masses

A

seromas, lymphpocoeles and urinomas

86
Q

MC solid retroperitoneal masses

A

sarcomas, lymphomas and LADPS 2’ to metastases of retrocrural or PAA LNs

87
Q

MC form of diaphragmatic hernia in infants acquired

A

esophageal hiatus hernia

88
Q

MC form of congenital diaphragmatic hernia

A

Bochdalek foramen hernia

89
Q

MC form of acquired alimentary tract obstruction in infants

A

hypertrophic pyloric stenosis

90
Q

MC malignant neoplasm of the GIT in children

A

lymphoma

91
Q

MC radiographic manifestation of pediatric GI effects of AIDS

A

LADPs (2nd MC hepatosplenomegaly)

92
Q

MC gut lesion in chronic granulomatous disease

A

antral narrowing

93
Q

MC conditions causing gas in the gut wall signaling severe/dangerous disease

A

NEC, typhlitis

94
Q

MC 1’ liver tumor in children

A

hepatoblastoma (2nd MC hepatocellular CA)

95
Q

MC benign liver tumor

A

hemangioblastoma, mesenchymal hamartomas and infantile hemangioendotheliomas

96
Q

MC cause of acute pancreatitis in pediatrics

A

blunt abdominal trauma

97
Q

MC GIT masses in the neonate

A

bowel duplications (enteric cysts)

98
Q

MC manifestation of a Meckel’s diverticulum

A

GI bleeding

99
Q

MC cause of emergency surgery in children

A

acute appendicitis

100
Q

MC cause of spontaneous pneumoperitneum

A

ruptured PUD

101
Q

MC cause of pancreatic lithiasis

A

pancreatitis

102
Q

MC cause for a nojn functioning GB

A

chronic cholecystitis with stones

103
Q

MC cause of benign biliary strictures

A

surgery

104
Q

MC benign tumor of the esophagus

A

leiomyoma

105
Q

MC manifestation of lymphoma

A

extrinsic compression of mass of nodes

106
Q

MC disease affecting the esophagus

A

esophagitis

107
Q

MC 1’ sarcoma of the stomach

A

leiomyosarcoma

108
Q

MC phytobezoars

A

persimmons seeds

109
Q

MC cause of filling defects on Barium swallow

A

retained food particles

110
Q

MC phytobezoars after surgery for PUD with vagotomy and partial gastric resection

A

oranges

111
Q

MC hiatal hernia

A

sliding or axial type

112
Q

MC predisposing factor for stomach volvulus

A

diaphragmatic hernia

113
Q

MC duodenal segment when peritoneal bands cause obstruction

A

3rd

114
Q

MC organic lesion in the upper GIT

A

duodenal ulcer

115
Q

MC segment with duodenal ulcers

A

1st, duodenal bulb

116
Q

MC cause of pyloric obstruction

A

duodenal ulcer

117
Q

MC site of duodenal diverticula

A

inner side of the descending duodenum close to the ampulla of Vater

118
Q

MC benign duodenal benign tumor

A

leiomyoma

119
Q

MC duodenal portion with CA

A

2nd portion

120
Q

MC sarcoma of the duodenum

A

leiomyosarcoma

121
Q

MC area with TB

A

ileocecal

122
Q

MC neoplasm of the small intestine

A

leiomyoma

123
Q

MC area with lymphoma

A

ileum

124
Q

MC site of regional enteritis

A

distal ileum

125
Q

MC association of potassium deficiencies with ileus

A

post operative GIT manipulation

126
Q

MC cause of organic megacolon

A

adhesions and chronic/recurrent volvulus

127
Q

Most important sign in pedia patients if no transition zone is demonstrated

A

colon stasis

128
Q

MC type of colonic polyp

A

adenomas

129
Q

MC segment with diverticula

A

sigmoid colon

130
Q

MC site of histoplasmosis in the GIT

A

colon and distal ileum

131
Q

MC sites of NEC in the GIT

A

ascending colon and ileum

GIT Radiology (2 decks)

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