Objective To investigate the histopathologic features of hamartomas of the oral and maxillofacial region and the distinction between a hamartoma and a benign neoplasm.

目的研究口腔颌面部错构瘤的病理特征及鉴别诊断。

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Abstract : Oral and maxillofacial-head and neck are region with high incidence of mucosal melanoma. The neoplasm is rare but aggressive, with high incidence of regional or distant metastasis.

摘要 口腔颌面-头颈部是黏膜黑色素瘤的高发部位，该病侵袭性强，易发生区域和远处转移，预后很差，临床治疗有很大的难度。

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