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患者女性,46岁。因发现气管肿物 3a于2002年 1月7日入院。 患者于1999年因胸闷、憋气在外院诊为气管肿物,经纤维支气管镜电烙切除,病理诊断:类癌。术后一般状况尚可,因近期复发,来我院就诊。 支气管镜检查:气管声门下方3.5cm气管后壁处可见软组织肿物,阻塞气管径2/3。CT表现:胸廓入口上方、甲状软骨下气管前、右及后壁不规则增厚,局部见软组织肿块影突入气管腔,肿物表面不光滑,致气管腔不规则狭窄,气管周围软组织受侵,血管间隙结构不清,左侧甲状腺受侵呈低密度（图1）。三维成像示肿块自气管右壁突入管腔内外,局部管腔不规则狭窄（图2）。诊断:正气管类癌。 讨论 在呼吸系统中,正气管原发肿瘤少见,在成
Patient female, 46 years old. Tracheal mass 3a was admitted on January 7, 2002. Patient in 1999 due to chest tightness, suffocation in the out-patient diagnosis of tracheal tumor, bronchoscopic resection by bronchoscopy, pathological diagnosis: carcinoid. After the general condition is acceptable, due to the recent recurrence, to our hospital. Bronchoscopy: Tracheal glottis 3.5cm below the posterior wall of the trachea soft tissue mass visible, blocking the trachea diameter 2/3. CT performance: Thoracic entrance above the thyroid cartilage anteroposterior, right and posterior wall irregular thickening, local soft tissue mass shadow seen into the tracheal lumen, the tumor surface is not smooth, causing irregular tracheal narrow trachea around the soft tissue invasion, Vascular structure is unclear, the left thyroid invasion was low density (Figure 1). Three-dimensional imaging showed that the tumor broke into the lumen of the right and left of the trachea with irregular luminal stenosis (Figure 2). Diagnosis: Positive tracheid carcinoid. Discussion In the respiratory system, the primary tracheal tumor is rare, into