Imaging cases #chest n°3

Slowly progressive shortness of breath

1. Findings : bilateral diffuse lung parenchymal nodular septal thickening, with peribronchovascular, fissural, and subpleural micronodularity, consistent with a perilymphatic distribution.
2. The differential diagnosis of perilymphatic nodularity is sarcoidosis, lymphangitic carcinomatosis, pneumoconiosis (ie, silicosis), and lymphoma.
3. Final diagnosis : pulmonary sarcoidosis