CHEST RADIOLOGY

Question 1

MC lung manifestation of RA

Answer 1

pleural effusion

Question 2

MC benign chest wall mass

Answer 2

Lipoma

Question 3

Most common primary MALIGNANT soft tissue neoplasm of the CHEST WALL in ADULTS

Answer 3

Fibrosarcoma and liposarcoma

Question 4

Most common PRIMARY MALIGNANT soft tissue neoplasm of the CHEST WALL in CHILDREN

Answer 4

Askin tumor (primitive neuroectodermal rests)

Question 5

Massive aspiration of gastric contents causing granulomatous foreign body type of reaction

Answer 5

Mendelson Syndrome

Question 6

Multifocal areas of consolidation usually seen in older patients with history of aspiration of mineral oil or laxative from gastric contents. Imaging shows FAT attenuation within a mass. It can also mimic lung cancer

Answer 6

Exogenous Lipoid pneumonia

Question 7

S sign of golden

Answer 7

a central convex mass preventing the fissure concavity in the UPPER LOBE COLLAPSE

Question 8

S sign of golden

Answer 8

a central convex mass preventing the fissure concavity in the UPPER LOBE COLLAPSE

Question 9

Luftsichel sign

Answer 9

crescent shaped air along the left upper mediastinum

** represents a portion of the overinflated superior segment of the LLL interposed between the aortic arch medially and the collapsed upper lobe laterally

**uncommon finding in LEFT UPPER LOBE ATELECTASIS

Question 10

Focal peripheral lucency beyond an occluded vessel, often accompanied by mild dilation of the central pulmonary vessels seen in PULMONARY EMBOLISM

Answer 10

Westermark’s sign

Question 11

circumscribed, subpleural opacity with a rounded or truncated convex medial border facing toward the pulmonary hilum seen in PULMONARY INFARCTION (Webb p 2153)

Answer 11

Hampton hump

Question 12

Pattern of lymph node enlargement in SARCOIDOSIS

Answer 12

1-2-3 sign

1= right paratracheal
2 = right hilar
3= left hilar