原发性气管肿瘤较罕见,远少于支气管肿瘤。原发性气管肿瘤中,约2/3是恶性或中间型(过渡型)肿瘤,如鳞状细胞癌、腺样囊性癌等。剩余约1/3是各种组织来源的良性肿瘤。神经源性肿瘤(包括神经纤维瘤和神经鞘瘤)非常罕见,可发生于任何年龄。神经鞘瘤也称许旺细胞瘤,更为罕见,它来源 Primary tracheal tumors are rare, far less than bronchial tumors. About two-thirds of primary tracheal tumors are malignant or intermediate (transitional) tumors such as squamous cell carcinoma, adenoid cystic carcinoma, and the like. The remaining about 1/3 is a benign tumor of various tissue sources. Neurogenic tumors (including neurofibromatosis and schwannoma) are rare and can occur at any age. Schwannoma, also known as Schwannoma, is even more rare, its source