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Revise Radiology Qs Notes > Revise Radiology GI > Flashcards

Revise Radiology GI Flashcards

1
Q

Rosary bead or corkscrew appearance on barium swallow

A

Diffuse oesophageal spasm

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2
Q

Median arcuate ligament stenosis

A

Focal stenosis of coeliac trunk due to indentation at superior surface by the median arcuate ligament

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3
Q

Incidental solitary bone lesion on CT Colon

A

Likely clinically unimportant, further follow up may be warranted

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4
Q

Double target sign in liver

A

Pyogenic abscess

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5
Q

Superficial spreading oesophageal carcinoma

A

Small plaque like nodularities which resemble pseudodiverticula

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6
Q

Pancreatic tumours: Islet cell vs carcinoid

A

Carcinoid tumours are hypovascular

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7
Q

Exophytic, heterogenously enhancing stomach mass

A

GIST

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8
Q

Specific to venous gut ischamia

A

Mesenteric fat stranding and ascites

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9
Q

Liver mass, non enhancing scar, normal AFP

A

Fibrolamellar HCC
FNH has delayed scar enhancement

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10
Q

Aspirin before liver biopsy

A

Stop for 7-10 days

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11
Q

Cholangiocarcinoma classification

A

Bismuth 1: Involves common hepatic duct
Bismuth 2: Confluence of right and left hepatic duct
Bismuth 3a: right hepatic duct
Bismuth 3b: left hepatic duct
Bismuth 4: Multifocal, right and left hepatic ducts
Bismuth 5: Junction of CBD and cystic duct.
1 and 2 are resectable

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12
Q

> 3cm circumscribed area of fat stranding in mesentery with swirling vessels

A

Omental infarct

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13
Q

Pancreatic tumoural growth into the GDA, prognosis

A

Can still be resected

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14
Q

Gasless abdomen TOF

A

Can happen in type A and B

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15
Q

Localised oesophageal pseudodiverticulosis

A

Can suggest peptic strictures or oesophageal cancer

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16
Q

Tapering and nodularity of distal oesophagus

A

Oesophageal cancer

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17
Q

C-rads scoring for ct colonoscopy

A

C0: Inadequate study
C1: Normal
C2: Indeterminate polyp 6-9mm, <3 in number. CTC in <3 years
C3: >10mm or >3 6-9mm or C2 gotten worse.
C4: >30mm mass likely malignant

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18
Q

Killian Jamieson vs Zenker

A

Zenker are usually larger and more often symptomatic

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19
Q

large, multilocular cystic lesion in pancreas with peripheral calcifications

A

Mucinous cystadenoma

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20
Q

Non propulsive disorganised contractions in the oesophagus

A

Tertiary contractions

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21
Q

Soft tissue mass around aorta, pushing aorta forwards

A

Lymphoma

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22
Q

Decreased perfusion and contractility at rest, increased FDG uptake, redistribution of thallium

A

Hibernating myocardium

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23
Q

Intense peripherally washout of liver lesion

A

Most specific for mets

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24
Q

Cystic lesion, not arising from bowel

A

Lymphangioma

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25
Q

Grade 3 splenic lac, not actively bleeding

A

Observation and conservative Rx

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26
Q

Posterior vaginal wall involvement of rectal cancer

A

Not considered high risk

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27
Q

Soft tissue mass arising from small bowel mesentery, mass effect on bowel

A

Mesenteric fibromatosis

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28
Q

Spongiform lesion with peripheral enhancement and gas locules 1 month post surgery with dense linear structures

A

Gossypiboma

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29
Q

High T1 signal within ablation zone (HCC)

A

Successful ablation

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30
Q

Caecal vs sigmoid volvulus

A

Caecal volvulus has haustral markings

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31
Q

Serous vs mucinous cystadenoma of pancreas

A

Serous consists of many smaller cysts with central stellate scar
Mucinous of fewer bigger cysts

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32
Q

Cowden syndrome

A

Hamartomatous GI polups, skin, external mucous membranes.
Increased risk of thyroid (follicular), oral, breast, skin and uterine malignancy

33
Q

Intraluminal mass in ileum, spreads to mesentery by direct extension or lymphatic spread

A

Carcinoid

34
Q

Most common small bowel tumour

A

Carcinoid

35
Q

Regional nodes for rectal cancer

A

Mesorectal, Obturator, Internal iliac, Inguinal (if low rectal)

36
Q

Inverted umbrella

A

Cone shaped caecum, narrowed TI, enlarged gaping IC valve)
colonic TB

37
Q

Malabsorbtion, abdominal pain, arthralgia, skin pigmentation

A

Whipple’s disease

38
Q

Thickening and nodularity of duodenal and proximal small bowel folds

A

Whipple’s disease

39
Q

FNH vs Fibrolamellar HCC

A

FNH scar is T2 hyperintense, Fibrolamellar is T2 hypo
HCC has calcifications

40
Q

T1 hypo. T2 hyperintense liver lesion with centrifugal enhancement

A

Peliosis hepatis

41
Q

Attenuation around small bowel mesentery with preservation of fat around vessels and nodes

A

Sclerosing mesenteritis

42
Q

?Adenomyosis on US, next step

A

Contrast US

43
Q

Regenerative vs Dysplastic nodules

A

Dysplastic usually show arterial enhancement

44
Q

Predictor of post op HCC recurrence and invastion

A

VICT2
Venous hypointensity
Incomplete capsule
Corona enhancement
T2 hyperintensity peritumourally

45
Q

Lateral outpouching at the lower oesophagus

A

Epiphrenic diverticulum

46
Q

Polyposis syndrome with increased risk of endometrial cancer

A

HNPCC

47
Q

Periappendicitis can cause

A

Small bowel obstruction

48
Q

starry sky appearance of liver

A

Liver oedema

49
Q

Ix to rule out malignancy with dermatomyositis

A

CTCAP

50
Q

Low density liver lesions with continuous rim of enhancement

A

Mets

51
Q

Dromedary hump vs prominent column of Bertin

A

Dromedary hump is a bulge facing outwards

52
Q

Multiple, non enhancing, tiny T2 bright lesions in the liver

A

Bile duct hamartomas

53
Q

Chronic PSC can lead to

A

Cirrhosis

54
Q

Blunt trauma, CT shows contrast extravasation, next step

A

Laparotomy

55
Q

HCC Peritumoural hypointensity in HPB phase

A

Suggests aggressive behaviour and vascular invasion

56
Q

AIDS, thickened jejunal folds with jejunal spasm

A

Giardiasis

57
Q

Flask shaped ulcers, cone shaped caecum

A

Entamoeba histolytica

58
Q

Poorly defined heterogeneity and low density in spleen

A

Angiosarcoma

59
Q

Commonest malignancy of spleen

A

Angiosarcoma

60
Q

Multiple sessile polyps throughout jejunum and ileum

A

Peutz Jehger

61
Q

Ventral embryonic pancreatic ducrt becomes

A

Distal main duct, aka duct of wirsung

62
Q

Multilocular cyst posterior to rectum with no enhancement. Some T1 bright areas

A

Recto-rectal cystic hamartoma or tailgut cyst

63
Q

RFA vs HCC Resection

A

RFA used for smaller lesions or non surgical candidates

64
Q

MRI appearances of autoimmune pancreatitis

A

Diffuse diffusion restriction

65
Q

May Thurner syndrome

A

LEFT common iliac vein compressed by RIGHT common iliac artery

66
Q

Gallbladder wall thickening with discontinuous enhancement

A

Gangrenous cholecystitis

67
Q

Most likely portion of bowel to perforate in intussception reduction

A

Rectum

68
Q

Mass like area associated with diverticular disease on CT colon

A

Likely benign, repeat CTC in 5 years

69
Q

Low T1/T2 liver lesion in cirrhosis

A

Ciderotic nodule

70
Q

Desmoid tumours associated with

A

Gardners syndrome

71
Q

RECIST criteria for measurable lesion

A

Must be larger than 10mm

72
Q

Pseudosacculation in terminal ileum

A

Crohns

73
Q

Commonest cause of pseudomyxoma peritonii

A

Appendix cystadenoma

74
Q

Commonest location for carcinoid tumour

A

Distal ileum

75
Q

3 polyps 6-9mm on CTC

A

Recall for colonoscopy

76
Q

Hepatic adenoma enhancement

A

early arterial enhancement, hypointense on hepatobilliary phase

77
Q

Parenchymal vs reticulendothelial pattern haemochromatosis

A

Parenchymal is primary, increased iron resorbtion (not transfusions) and spares spleen and bone marrow

78
Q

Commonest cause of echogenic liver mets

A

Colon adenocarcinoma

Revise Radiology Qs Notes (60 decks)

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