Leiomyoma, neurofibroma, carcinoid and squamous cell carcinoma was found in one patient respectively, adenocarcinoma in 2 patients, adenoid cystic carcinoma in 3 patients.

• 结果平滑肌瘤、神经纤维瘤、类癌、鳞状细胞癌各1例,腺癌2例,腺样囊性癌3例。