Pulmonary sarcoidosis in a patient with essential thrombocythemia treated with interferon alpha: a short case report.

A patient with essential thrombocythemia was diagnosed with pulmonary sarcoidosis after interferon alpha therapy. Following interferon treatment the miliary pulmonary dissemination has appeared and after disruption of this therapy it resolved during two months. Few cases of sarcoidosis associated with interferon alpha treatment have been reported. These patients were treated for chronic myelogenous leukemia, chronic hepatitis C, and renal cell carcinoma. We report the first case of interferon-related sarcoidosis in an essential thrombocythemia patient.