Pleural involvement in sarcoidosis.

Pleural sarcoidosis is no longer considered rare, as it occurs in about 3% of all cases of sarcoidosis. However, newer methods of detection may boost this level higher. High-resolution computed tomographic scanning has increased our detection of pleural nodules and pleural thickening. Other manifestations include pneumothorax, chylothorax, and hemothorax. Further studies of large numbers of patients are needed to determine the true prevalence of pleural involvement in sarcoidosis.