| 释义 |
retinal anlage tumor mel·a·not·ic neu·ro·ec·to·der·mal tu·mor of in·fan·cya benign neoplasm of neuroectodermal origin that most often involves the anterior maxilla of infants in the first year of life. It presents clinically as a rapidly growing blue-black lesion producing a destructive radiolucency; histologically, it is characterized by small, round, undifferentiated tumor cells interspersed with larger polyhedral melanin-producing cells arranged in an alveolar configuration. Synonym(s): melanoameloblastoma, pigmented ameloblastoma, pigmented epulis, progonoma of jaw, retinal anlage tumorretinal anlage tumor Pigmented neuroectodermal tumor of infancy, see there. |