Meningeal melanocytoma with malignant behaviour
نویسندگان
چکیده
منابع مشابه
Primary meningeal melanocytoma.
Meningeal melanocytoma is an uncommon benign pigmented primary lesion that has to be distinguished as a pathological entity separate from other benign melanin containing tumours as well as its overtly malignant counterpart, melanoma. In the present study, a 58 year old lady presented with bilateral sensory and motor symptoms in the lower limbs. The MRI scan showed a dumb-bell shaped lesion in t...
متن کاملSpinal meningeal melanocytoma.
A case of spinal meningeal melanocytoma is reported along with clinicopathologic, immunohistochemical and ultrastructural studies. This patient presented clinically with paraparesis, tingling sensation and numbness of both lower extremities of 4 months duration. No mucocutaneous pigmented nevi were found. On operation, scattered coal-black pigmented lesions were found in the meninges between T3...
متن کاملMR of spinal meningeal melanocytoma.
We report an unusual case of meningeal melanocytoma, a rare pigmented lesion of the leptomeninges, that occurred within the leptomeninges of the thoracic spinal canal. The lesion showed increased signal intensity on T1-weighted MR images relative to gray matter, was isointense with gray matter on T2-weighted images, and enhanced mildly but homogeneously after administration of contrast material.
متن کاملA case report on intermediate-grade malignant meningeal melanocytoma with elevated cell proliferation index.
Meningeal melanocytoma is a kind of extremely rare pigmented tumor of the central nervous system, which often occurs in the groove around the base of the brain and spinal pia mater. Age of onset is 40 to 50 years old, mostly presenting a benign course of disease and the prognosis is good. Case reports of partial invasion or metastasis from lesions are even rarer. This report described a case of...
متن کاملIntracranial Meningeal Melanocytoma: Review of the Literature
Primary pigmented tumors of the cerebrospinal meninges are rare and uncommon group of melanin-containing neoplasms. They include pigmented meningioma, malignant melanoma, meningeal melanocytoma, melanotic schwannoma and melanoblastosis. These tumors are different in biological behavior, treatment and prognosis. Valenti was the first to describe pigmented cells normally found in the leptomeninge...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Neurología (English Edition)
سال: 2011
ISSN: 2173-5808
DOI: 10.1016/j.nrleng.2011.01.013