Radiology Live Unit 1

Question 1

Most specific finding for ABPA on CT

Answer 1

Mucoid impaction with hyperdense content

Question 2

Pleural mass enhancement on PV phase

Answer 2

Masses enhance less than adjacent pleura

Question 3

Most sensitive Ix to detect intrapulmonary vascular dilatations in hepatopulmonary syndrome

Answer 3

Contrast echo

Question 4

Increased myocardial uptake in Amyloid (which radiotracer)

Answer 4

Tc99m-MDP

Question 5

NSIP

Answer 5

Ground glass opacites, fine reticulation and traction bronchiectasis with subpleural sparing

Question 6

Most susceptible pulmonary arteries to motion artefact on CTPA

Answer 6

Right lower lobe

Question 7

Early malignant mesotheloima

Answer 7

Focal pleural thickening without calcification

Question 8

Aortic dissection with patent false lumen and no dilatation

Answer 8

Chronic

Question 9

Flow pattern in feeding artery of radial pseudoaneurysm

Answer 9

Turbulent

Question 10

Lymphoma, air bronchograms within masses

Answer 10

Associated with non-hodgkin’s

Question 11

Earliest sign of pulmonary oedema on CXR

Answer 11

Peribronchial cuffing

Question 12

CXR sensitivity for early amiodarone lung changes

Answer 12

50-60%

Question 13

Malignant transformation of chest wall neurofibroma

Answer 13

Peripheral enhancement with central necrosis

Question 14

young female, diminished pulses in arm, fatigue, weight loss

Answer 14

Takayasu

Question 15

Measure of intrapulmonary shunt severity in hepatopulmonary syndrome

Answer 15

Shunt fraction

Question 16

Specific feature of asbestosis vs malignant mesothelioma

Answer 16

Lower zone fibrosis

Question 17

Most specific finding for mediastinal teratoma

Answer 17

Fat-fluid levels

Question 18

SLE pt, smooth septal thickening and bilateral ground glass opacities

Answer 18

Pulmonary haemorrhage

Question 19

Most sensitive for early vascular inflammation in large vessel vasculitis

Answer 19

18F-FDG PET CT

Question 20

Multiple nodules with ground glass halos in lower lobes - HIV

Answer 20

Kaposi sarcoma

Question 21

Feature favoruing closure of PFO

Answer 21

Atrial septal aneurysm - increases risk of paradoxical embolism