Sciubba J J, Younai F
Department of Dental Medicine, Long Island Jewish Medical Center, New Hyde Park, New York.
Oral Surg Oral Med Oral Pathol. 1991 Apr;71(4):476-81. doi: 10.1016/0030-4220(91)90433-d.
A wide range of discrete head and neck tumors are developmental, including those termed choristoma, hamartoma, dermoid cysts, teratoid tumors, and true teratomas. In classifying various teratomas, consideration is given to the embryonal layers represented within the substance of the tumor and to their level of organizational complexity. By definition, a hamartoma is a tissue mass, present at or near the time of birth, that is benign and native to the site of origin. Growth capacity of a hamartomatous process parallels that of the host organism. A choristoma, on the other hand, is a mass of tissue that is foreign to the site of discovery and is thought to result from growth to displaced primordial tissue that is histologically normal for that tissue.
多种离散性头颈部肿瘤是发育性的，包括那些被称为迷芽瘤、错构瘤、皮样囊肿、畸胎样肿瘤和真性畸胎瘤的肿瘤。在对各种畸胎瘤进行分类时，会考虑肿瘤实质内所代表的胚层及其组织学复杂程度。根据定义，错构瘤是出生时或出生时附近出现的组织块，是良性的且起源于原发部位。错构瘤性病变的生长能力与宿主生物体的生长能力平行。另一方面，迷芽瘤是在发现部位以外的组织块，被认为是由移位的原始组织生长而来，该原始组织在组织学上对于该组织来说是正常的。
