Radiological interpretation

Question 1

Signs of pneumothorax

Answer 1

partial or complete collapse of lung
overexpansion of rib cage
depression of diaphragm
displacement of mediastinum away from affected lung
deep sulcus sign (pronounced costo-diaphragmatic angle)

Question 2

Timeline for lung development

Answer 2

week 7 - tertiary bronchi
week 24 - 17 orders of branching, alveoli start to develop, breathing is possible but survival is unlikely
week 26-28 - sufficient alveoli to support life, type II pneumocytes have started to develop, infants born prior suffer from RDS
alveoli development continues until year 8

Question 3

Loss of L. cardiac shadow indicates

Answer 3

disease process in the L. lingula

Question 4

Diffuse alveolar and interstitial abnormalities indicate

Answer 4

Viral pneumonia
ARDS
Pulmonary edema

Question 5

Coal workers pneumoconiosis radioogical pattern

Answer 5

Nodules, bilaterally in the upper lung zones

Question 6

Nodules indicate:

Answer 6

silicosis
sarcoidosis
miliary TB
metastatic cancer
septic emboli
Wegener's disease

Question 7

Septal lines indicate:

Answer 7

interstitial edema

lymphangitic carcinomatosis

Question 8

Reticular pattern

Answer 8

interstitial edema

pulmonary fibrosis

Question 9

Airspace consolidation

Answer 9

pneumonia
edema
hemorrhage
lymphoma
bronchioalveolar carcinoma
alveolar proteinosis