EPITHELIAL CYSTS OF NEURAXIS - PRESENTATION OF 3 CASES AND A REVIEW OF ORIGINS AND CLASSIFICATION

  • 1 January 1977
    • journal article
    • review article
    • Vol. 101  (4) , 196-202
Abstract
Benign, epithelial-lined cysts of the neuraxis may be asymptomatic or may behave as space-occupying lesions. Presentation of 3 such cysts, including an intramedullary epidermoid cyst, a lumbosacral subcutaneous enteric cyst that has an epithelium resembling ependyma and a hypophyseal duct cyst, illustrated typical problems encountered. Review of their histogenesis and possible embryogenesis indicated that intracranial ependymal cysts and cysts of the sella turcica were not normally associated with other anomalies and frequently occurred after middle age, whereas dermal and enteric cysts occurred within the first 2 decades and were commonly associated with vertebral anomalies and other dysraphic syndromes. Enteric cysts may have a variable histologic appearance, including 1 resembling ependymal cysts. Recognition of the latter is important because of a possible associated dysraphic syndrome and the presence of an extraneuraxial component with the former but not the latter.

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