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Cytomorphology of granular-cell tumor of the bronchus. A case report.

The cytologic features of a bronchial granular-cell tumor clinically mimicking a bronchogenic carcinoma are presented. Distinctive granular cells similar to the main cellular components of the surgical specimen were found in abundance in bronchial brushings and washings obtained during bronchoscopy. Our findings and conclusions confirm previously published studies. Granular-cell tumors of the bronchus can easily be diagnosed on cytologic examination if the entity is considered in the differential diagnosis of clinically suspected lung tumors.