Meningeal melanocytoma. Report of a case and a historical comparison

Journal of Neurosurgery
D B ClarkeG J Snipes

Abstract

Meningeal melanocytomas are rare tumors of the central nervous system that are found almost exclusively in the posterior fossa and spinal cord and whose natural history is poorly defined. In this report, the authors review the clinical presentation, radiological appearance, operative findings, and histological features in two cases of meningeal melanocytoma: one cranial and one spinal. Two women, aged 21 and 30 years, were admitted to the hospital 60 years apart: the first because of progressive paraplegia and the second because of slowly progressive hearing loss. The first patient had an extradural tumor that was treated by laminectomy, subtotal resection, and postoperative radiotherapy in 1936. Her symptoms recurred 16 years later and she underwent reoperation of the residual tumor, which was found to have an intradural component. The authors' patient, who presented 60 years later, underwent plain and enhanced computerized tomography and magnetic resonance imaging that demonstrated a large posterior fossa lesion indicative of either an acoustic neuroma or a meningioma. She underwent posterior fossa decompression but only partial excision of the tumor could be accomplished because vigorous bleeding limited the extent of the re...Continue Reading

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Citations

Dec 11, 2002·Neurologia Medico-chirurgica·Osamu HamasakiKatsuaki Sakoda
Mar 27, 2010·Neurologia Medico-chirurgica·Kuniaki NakaharaAtsuko Nakagawa
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Dec 29, 2020·British Journal of Neurosurgery·Christian FernandezWenyin Shi

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