病例:男,11岁,因发现颈部肿块2月余入院。查体:神清、气平、发育良好。右侧颈前可扪及一1.5 cm×1.5 cm肿块,随吞咽动作而活动,但不随伸舌动作活动,肿块无压痛,边界清,质韧,活动度可。既往无颈部外伤史和肿瘤病史,家族中无类似肿物史。术前B超示,甲状腺右叶一混合 Case: Male, 11 years old, because of the discovery of cervical mass more than 2 months admitted to the hospital. Examination: God clear, level, well-developed. Palpable on the right side of the neck and a 1.5 cm × 1.5 cm mass, with the swallowing movements and activities, but not with the tongue movement activities, mass without tenderness, border clearance, quality and toughness, activity can be. No past history of neck injury and tumor history, no history of similar tumor in the family. Preoperative B ultrasound showed that the right lobe of a mixed