A case of mucoepidermoid carcinoma of the bronchus.

We reported a case of early mucoepidermoid carcinoma of the bronchus. A 41-year-old female was admitted to our hospital complaining of hemosputum and slight fever. On fiberoptic bronchoscopy, a tumor mass narrowing the orifice of right middle lobe bronchus was seen. Right middle and lower bilobectomy was performed under the diagnosis of adenocarcinoma, which was suggested by the bronchofiberoptic biopsy. Postoperative histological examination revealed that this tumor was an early mucoepidermoid carcinoma of the bronchus, and that the cellular differentiation was considered as the grade 2 of Conlan's classification. The postoperative course was uneventful. She has been well one year after the operation.