Imaging

Question 1

Where are perilymphatic nodules found?

Answer 1

Secondary lobule, peribronchovascular, subpleural

Question 2

Perilymphatic nodules are most common in _____, as well as in _____.

Answer 2

sarcoidosis; pneumoconioses

Question 3

The CT imaging features of early _____ are multiple ill-defined micronodules with a centrilobular distribution. As the disease progresses, these nodules tend to cavitate, and a combination of bizarre-shaped cysts and nodules is characteristic.

Answer 3

PLCH

Question 4

CT findings characteristic of _____ are diffuse, exquisitely thin-walled cysts. Additionally, the intervening lung is largely normal, with no nodularity.

Answer 4

LAM

Question 5

Ground-glass opacities, centrilobular micronodules, thickening of bronchovascular bundles, and a few cystic airspaces. The cysts have thin walls, have a perivascular and subpleural distribution, and typically involve <10% of the lung parenchyma.

Answer 5

LIP

Question 6

_____ is a rare, autosomal dominant condition characterized by the development of fibrofolliculomas on the face, head, and upper torso; kidney tumors; recurrent pneumothoraces; and irregularly shaped, thin-walled pulmonary cysts, most of which are <1 cm.

Answer 6

Birt-Hogg-Dubé

Question 7

Small, irregularly shaped, thin-walled cysts

Answer 7

BHD