Sarcoid is primarily a lung (pulmonary) disease. In the early stages, a chest film may show enlargement of lymph nodes in the center of the chest near the heart (mediastinum).
Update Date 2/19/2015
Updated by: Joseph V. Campellone, MD, Department of Neurology, Cooper University Hospital, Camden, NJ. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.