Primary granulocytic sarcoma presenting with pleural and pulmonary involvement.

A 36-year-old woman presented with cough, pleural effusion and atelectasis. Evaluation included pleural biopsy, bronchoscopy, bone marrow biopsy, endomyocardial biopsy and ultimately thoracotomy. The diagnosis of granulocytic sarcoma involving lungs and pleura but not bone marrow was made histologically.