A case of pulmonary sarcoidosis preceding polycythemia vera with literature review.

For several years is described a non-random association between sarcoidosis and solid or hematological tumors. We present a case in which a patient with pulmonary sarcoidosis developed polycythemia vera few months later. A review of literature shows that sarcoidosis precedes neoplasms and tends to be a chronic active variety. Our case, by contrast, has been responsive to steroid therapy.