Correlates of Pulmonary Function

These images are taken from other patients with silicosis.

wall1wall2wall3wall4wall4

Emphysema

Panacinar emphysema, shown here, may accompany silicosis.

Find 3 free, unattached alveolar walls, a histologic correlate of emphysema.

While the emphysema may be related to smoking, the more pronounced pericicatricial (scar) emphysema noted here around the central silicotic nodule may have been caused by dust-related inflammation.

 

What does the presence of an artery adjacent to the silicotic nodule indicate about the location of the nodule? Answer

bronchiolearterynodule1nodule2

Airway Narrowing

Black pigment-laden histiocytes and silicotic nodules surround a distorted bronchiole. Note the lack of emphysema here.

Find the bronchiole and the accompanying artery.

Find two silicotic nodules.

 

Return to answer.

Return to discussion.

 

TOP----Unknown 5----Rad/Path Home Page

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Free alveolar wall

Return

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The artery signifies a centriacinar region. The accompanying bronchiole (not shown here) has probably been narrowed (if in another plane of section) or obliterated by the silicotic scarring.

Return

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Branch of pulmonary artery

Return

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bronchiole

Return

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Silicotic nodule

Return