异位胸腺类癌１例沈世明１临床资料患儿男性，４岁。因左颈前发现无痛性肿块５ｄ入院。患儿５ｄ前无意中被其父母发现左侧颈部肿块，触之轻度疼痛，经Ｂ超提示为左侧甲状腺腺瘤。体检：颈软，气管居中，左颈动脉内侧可触及２ｃｍ×２ｃｍ肿块，表面光滑，活动可，不随吞咽... Ectopic thymic carcinoid 1 case Shen Shiming 1 Clinical data Child Male, 4 years old. A painless mass was admitted to the hospital in front of the left neck for 5 days. Before 5 days, the child was inadvertently discovered by his parents that the left neck mass was mildly painful, and the B-ultrasound showed a left thyroid adenoma. Physical examination: neck and neck, central trachea, 2cm×2cm mass on the inside of the left carotid artery, smooth surface, activity, not swallowing...