NEUROGENIC TUMORS ARISING FROM THE SACRUM

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Abstract
The perplexing problems encountered in the diagnosis and treatment of sacral and anterosacral tumors and cysts have prompted this review of 33 neurogenic tumors. It is usually assumed that neurogenic tumors are found in the cerebrospinal axis or associated with the peripheral nervous system. However, during the last fifteen years we have encountered a number of neurogenic neoplasms associated with the sacrum and independent of the cerebrospinal axis and peripheral nervous system. The group includes 19 chordomas, 7 ependymomas, 2 ganglioneuromas, 3 neurofibromas, 1 teratoma and 1 spina bifida cystica of the pelvis. It is hoped that a review of the clinical histories, pathologic observations and therapeutic measures employed may offer some assistance in the differential diagnosis and treatment of similar conditions. Tumors ventral to the sacrum often have been called Middeldorpf tumors, but this term should be limited to those teratomatous tumors that arise from the postanal portion of

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