Noncaseating pulmonary granulomas associated with small cell carcinoma of the lung.

Noncaseating pulmonary granulomas are rarely associated with primary carcinoma of the lung. The patient described herein presented with constitutional symptoms and nodular pulmonary infiltrates associated with noncaseating granulomas without evident neoplasm in both transbronchial and open lung biopsy specimens. Despite corticosteroid therapy for presumed sarcoidosis, chest roentgenographic findings worsened and repeated transbronchial biopsy 12 months after the onset of initial symptoms revealed small cell carcinoma of the lung. Twenty-two months after initiation of chemotherapy, the patient is well with no evidence for carcinoma.