Intradural extramidullary dorsal melanocytoma in the adult: Case report and review of the literature
2019
Abstract Intradural Extramedullary Spinal Melanocytoma (IESM) is an extremely uncommon tumour arising from the spinal leptomeninges; both from a gross pathology and microscopic point of view it can mimick its malignant counterpart, the Melanoma. Such tumours are usually solitary, with a lower proliferating rate and without obvious SC invasion. Their common differential diagnoses include Spinal Schwannoma and Spinal Meningiomas since they share a significant amount of radiological similarities. It is a relatively benign condition which is, to date, with no more than 24 previously reported cases, yet widely unexplored and poorly understood. We report the detailed clinical history of a 60 years old individual suffering from IESM and, by means of a thorough Literature review, the most relevant features concerning the epidemiological issues, the clinical course, the radiological appearance, the surgical results and the typical gross and microscopic pathology of a cohort of previously reported cases of IESM are extensively discussed and systematically investigated through statistical analyses in order to add to the relevant Literature a dedicated work concerning this rare and enigmatic condition.
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