| Autor: |
Atkinson, G. O., Davis, P. C., Patrick, L. E., Winn, K. J., Ball, T. I., Wyly, J. B. |
| Zdroj: |
Pediatric Radiology; November 1989, Vol. 20 Issue: 1-2 p20-22, 3p |
| Abstrakt: |
Melanotic neuroectodermal tumor of infancy is an uncommon neoplasm occurring primarily in the child one year or less in age [1]. Difficulty in deciding the cellular origin of this tumor has led to numerous names, including congenital melanocarcinoma, melanotic epithelial odontoma, melanotic ameloblastoma, and retinal anlage tumor, to list a few [2]. Electron microscopy and histochemical studies, however, have now established the neural crest as the most likely origin [2]. The most frequent site of occurrence is the maxilla followed by the skull, the brain and the mandible. The genital organs are the most frequent extracranial site [1]. Within the skull, there is a predilection for the anterior fontanel. The following is a case report of a young child with melanotic neuroectodermal tumor of infancy arising at the anterior fontanel. Included is a discussion of magnetic resonance (MR) findings, which to our knowledge, have not been previously reported in this tumor. |
| Databáze: |
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