Melanotic neuroectodermal tumor of infancy

概要

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The melanotic neuroectodermal tumor of infancy is a rare, pigmented neoplasm that most frequently arises from the anterior maxillary alveolar ridge. This tumor presents in the first few months of life, and usually follows a benign course. The importance of early conservative surgical excision is emphasized with a good prognosis but it should be followed up for long periods because of the possibility of unusual malignant change in the tumor. A case of melanotic neuroectodermal tumor of infancy involving the anterior maxillary alveolar ridge of a 5 month old boy was reported. A partial maxillectomy with removal of the tumor was performed through a gingivobuccal sulcus incision at a 9 month old. The bilateral side of the maxillary alveolus and palate bone were removed and the mucosal flap of hard palate was applied in order to close the resulting defect. He could take milk perorally after one postoperative day and there is no sign of recurrence at 25 months after the removal. This tumor should be included in the differential diagnosis of head and neck neoplasms in infants and young children.
特定非営利活動法人日本頭頸部外科学会の論文