错构瘤并非真性肿瘤，属瘤样病变，是一大类以局部组织生长过多、结构紊乱为特征的特殊畸形，处于畸形与肿瘤之间，兼有两者特点，属于“交界性病变”的范畴。多见于肺部、纵隔，而发生于头颈部者甚为少见，易误诊为真性肿瘤和颈部转移癌。现报告１例如下。患者，男，６５... Hamartoma is not a true tumor and is a tumor-like lesion. It is a large group of special malformations characterized by excessive local tissue growth and structural disorders. It is located between the malformation and the tumor and has both characteristics. It belongs to the “borderline lesion.” Category. More common in the lungs, mediastinum, and occur in the head and neck are very rare, often misdiagnosed as true tumors and cervical metastases. The report 1 is for example below. Patient, male, 65...