Radiology Live Unit 3

Question 1

Most specific CT finding for Crohns

Answer 1

Comb sign

Question 2

Traction diverticular shape

Answer 2

Triangular

Question 3

porcelain GB on CT, Ix

Answer 3

US

Question 4

Genetic disease associated with Carolis

Answer 4

ARPKD

Question 5

liver nodule with nodular peripheral enhancement and incomplete fill in

Answer 5

Atypical haemangioma

Question 6

previous prostate Ca, low ADC nodule on MRI, Ix

Answer 6

PET CT

Question 7

Inferior lumbar triangle hernia

Answer 7

Protrudes through Petit’s triangle, inferior lumbar triangle, bordered by:
- Iliac crest inferiorly
- External oblique anteriorly
- Lat dorsi posteriorly

Question 8

Posterior beam attenuation (US Liver)

Answer 8

Fatty liver

Question 9

Key landmark to differentiate direct vs indirect hernias

Answer 9

Inferior epigastric vessels

Question 10

Stellate enhancing mass on CT, next Ix

Answer 10

MRI with contrast

Question 11

Multiple, small discrete ulcers with normal intervening mucosa (oesophagus)

Answer 11

HSV oesophagitis

Question 12

Dedifferentiated carcinoid uptake (NM)

Answer 12

High FDG, low Octreotide

Question 13

Most sensitive CT finding for sclerosing mesenteritis

Answer 13

Increased attenuation of mesenteric fat

Question 14

Commonest bowel segment in obstructed femoral hernia

Answer 14

Ileum

Question 15

Labelled RBC scans can detect

Answer 15

Bleeding as little as 0.1ml/min

Question 16

Most sensitive MRI sequence to detect rectal cancer recurrence

Answer 16

DWI

Question 17

Highest time for false positive findings in MRI post rectal cancer radiotherapy

Answer 17

3-6 months

Question 18

cystic pancreatic lesion associated with VHL

Answer 18

Serous cystadenoma

Question 19

Retention of contrast material (swallow)

Answer 19

Pulsion diverticulum

Question 20

Most specific feature of HCC in cirrhosis

Answer 20

Enhancing capsule

Question 21

Haemochromatosis on XR, next Ix

Answer 21

MRI liver with T2* (unenhanced)