Revise Radiology Resp

Question 1

Geographic ground glass with smooth interlobular septal thickening

Answer 1

PAP (Crazy paving)

Question 2

NF1 lung findings

Answer 2

Lower zone fibrosis,
Thin walled bullae in upper zones

Question 3

Acute interstitial pneumonia

Answer 3

Bilateral ground glass opacities and consolidation lower lobe predominence, sparing costophrenic angles.
Late phase: traction bronchiectasis and honeycombing

Question 4

Cryptogenic organising pneumonia

Answer 4

Patchy consolitation and ground glass, peripheral and peribronchial distribution

Question 5

Langerhand cell histiocytosis

Answer 5

Young smoker, bizarre shaped cysts in upper lobes

Question 6

Immune reconstitution inflammatory syndrome

Answer 6

HIV pts on HAART, exagerated inflammatory response to previously subclinical infection.
Increased inflammatory changes and lymph nodes

Question 7

Sarcoid

Answer 7

Bilateral perilymphatic nodules, mediastinal and hilar lymphadenopathy

Question 8

Kaposi sarcoma

Answer 8

Multiple perilymphatic and peribronchovascular nodules

Question 9

Desquamative interstitial pneumonia

Answer 9

Smokers, diffuse ground glass in lower lobes with minimal reticulation

Question 10

Post transplant lymphoproliferative disorder

Answer 10

Well circumscribed mass with air bronchograms and moderate PET uptake (first few years post transplant)

Question 11

LCH vs LAM

Answer 11

LCH shows nodules in addition to cysts, predominantly upper and mid zones
LAM shows thin walled cysts only, diffusely spread

Question 12

“Comet tail sign”

Answer 12

Round atelectasis

Question 13

Ranke complex

Answer 13

Calcified granuloma (Ghon) plus calcified hilar node

Question 14

Tracheobronchopathia osteochondroplastica

Answer 14

Irregular nodular thickening of tracheal cartilage or osseous nodules in tracheal submucosa, sparing posterior wall

Question 15

Enhancing lesion in lumen of central airway

Answer 15

Typical carcinoid

Question 16

Hypersensitivity pneumonitis

Answer 16

Coarse reticulation in random distribution with ground glass opacity and air trapping in mid to lower zones

Question 17

Superior mediastinal mass with sharp border with adjacent lung below

Answer 17

Retrosternal goitre

Question 18

CT chest protocols to assess ILD

Answer 18

Prone inspiration and supine expiration scans

Question 19

RBILD

Answer 19

Upper lobe predominant centrilobular ground glass nodules, smoker

Question 20

6mm nodule in high risk pt (smoker)

Answer 20

3 month CT follow up

Question 21

Sarcoid (chest) staging

Answer 21

Stage 1: Hilar/mediastinal nodes only
Stage 2: Nodal enlargement and parenchymal disease
Stage 3: Parenchymal disease only
Stage 4: End stage lung disease (pulmonary fibrosis)

Question 22

sarcoid distribution

Answer 22

Mid to upper zones

Question 23

medullary thyroid carcinoma chest findings

Answer 23

Bullae and fibrosis

Question 24

Acute eosinophilic pneumonia

Answer 24

Diffuse ground glass opacities with interlobular septal thickening

Question 25

Straight edge sign

Answer 25

UIP (clear demarcation of fibrosis inferiorly and clear lung superioly)

Question 26

PA/Aorta > 1

Answer 26

Pulmonary hypertension

Question 27

Mediastinal pleural thickening

Answer 27

Suggests malignant mesotheloima

Question 28

RA associated interstitial lung disease pattern

Answer 28

UIP

Question 29

Pneumothorax on ultrasound

Answer 29

Loss of lung sliding and Z lines. Presence of A lines extending into the the far field

Question 30

Lung nodule follow up

Answer 30

>8mm: Low risk - CT 3 months, high risk: PET

Question 31

Welder, interstitial lung disease

Answer 31

Siderosis

Question 32

Birt Hogg Dube lung findings

Answer 32

Thin walled, lower lobe cysts, oval cysts

Question 33

Ix for anterior mediastinal mass on CT

Answer 33

Biopsy

Question 34

AIDS lymphoma subtype

Answer 34

High grade, NHL, B cell