The study involved 77 @entity424 of the spinal cord encountered during a 60-year period (1924-1983). This variant of @entity424 was, with few exceptions, limited to the lumbosacral region, particularly the filum terminale. The male:female ratio was 1.7:1, and the mean age at diagnosis was 36.4 years (range, 6-82); at presentation, 15 (19%) of the @entity1 were in the first two decades of life. The duration of symptoms ranged from 1 month to 30 years; the most frequent complaint was @entity1643 , and eight @entity1 had undergone prior "disc surgery." Generally, @entity616 was disclosed. Preoperative cerebrospinal fluid protein levels averaged 2462 mg/dl. @entity424 are @entity5 that show no significant tendency to histologic dedifferentiation. Despite some variation in cytologic features and the presence of atypia and modest mitotic activity in most cases, the gross characteristics of the @entity5 appear to be of greater prognostic significance than the histologic features. Tumors that were encapsulated (25%) and amenable to intact, total surgical removal had a recurrence rate of 10%, whereas those that were removed either piecemeal (34%) or subtotally (41%) had recurrence rates of 19%. Overall survival, however, was more closely related to @entity41 , whether intact (encapsulated) or piecemeal, resulted in longer survival (19 years) than did subtotal resection (14 years). @entity1 who died (6.5%) did so after a prolonged course marked by multiple recurrences. Radiotherapy may be of particular benefit to @entity1 whose @entity5 are not amenable to intact total removal.

XXXX . A clinicopathologic and immunocytochemical study of 77 cases.

@entity1 :: ('9606', 'Species') :: ['Patients', 'patients'] @entity1643 :: ('MESH:D017116', 'Disease') :: ['low-back pain'] @entity424 :: ('MESH:D004806', 'Disease') :: ['ependymoma', 'myxopapillary ependymomas', 'Myxopapillary ependymomas'] @entity41 :: ('MESH:D018365', 'Disease') :: ['residual disease; total removal of tumor'] @entity5 :: ('MESH:D009369', 'Disease') :: ['slow-growing tumors', 'tumors'] @entity616 :: ('MESH:D006327', 'Disease') :: ['myelographic block']
@entity424 :: (MESH:D004806,Disease) :: ['Myxopapillary ependymoma']
