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Primary meningeal melanocytoma of the cerebellopontine angle associated with ipsilateral nevus of Ota: A case report

BACKGROUND: Cerebellopontine angle represents a complex anatomical area of the brain. A cerebellopontine angle lesion could be a vestibular schwannoma, meningioma, epidermoid cyst, or less likely, arachnoid cyst, metastasis, lower cranial nerves schwannoma, lipoma, hemangioma, paraganglioma, or vert...

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Autores principales: Elbadry, Rasha, Elazim, Ahmed Abd, Mohamed, Kazim, Issa, Mamdouh, Ayyad, Ali
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications & Media Pvt Ltd 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6293867/
https://www.ncbi.nlm.nih.gov/pubmed/30613434
http://dx.doi.org/10.4103/sni.sni_235_18
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author Elbadry, Rasha
Elazim, Ahmed Abd
Mohamed, Kazim
Issa, Mamdouh
Ayyad, Ali
author_facet Elbadry, Rasha
Elazim, Ahmed Abd
Mohamed, Kazim
Issa, Mamdouh
Ayyad, Ali
author_sort Elbadry, Rasha
collection PubMed
description BACKGROUND: Cerebellopontine angle represents a complex anatomical area of the brain. A cerebellopontine angle lesion could be a vestibular schwannoma, meningioma, epidermoid cyst, or less likely, arachnoid cyst, metastasis, lower cranial nerves schwannoma, lipoma, hemangioma, paraganglioma, or vertebra-basilar dolichoectasia. Primary meningeal melanocytoma is a rare neoplasm, especially when it occurs at the cerebellopontine angle. Nevus of Ota (aka oculodermal melanocytosis) is a hyperpigmentation along the distribution of the ophthalmic and maxillary branches of trigeminal nerve; it occurs due to entrapment of melanocytes at the upper third of the dermis. It may not present at birth and may show up at puberty. CASE DESCRIPTION: We describe a case of primary meningeal melanocytoma of the cerebellopontine angle associated with nevus of Ota in a 46-year-old male patient presented with 7-day history of left arm weakness and vertigo. Computed tomography and MRI showed right-sided cerebellopontine angle mass, which was resected. Histopathology confirmed the meningeal melanocytic lesion and revealed its nature. CONCLUSION: Primary meningeal melanocytoma of the brain is a rare but benign tumor; the association between meningeal melanocytoma and nevus of Ota is also rare and possibly explained by their common embryonic origin from neural crest cells. There are six cases reported so far in literature including our case for meningeal melanocytoma associated with nevus of Ota.
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spelling pubmed-62938672019-01-04 Primary meningeal melanocytoma of the cerebellopontine angle associated with ipsilateral nevus of Ota: A case report Elbadry, Rasha Elazim, Ahmed Abd Mohamed, Kazim Issa, Mamdouh Ayyad, Ali Surg Neurol Int General Neurosurgery: Case Report BACKGROUND: Cerebellopontine angle represents a complex anatomical area of the brain. A cerebellopontine angle lesion could be a vestibular schwannoma, meningioma, epidermoid cyst, or less likely, arachnoid cyst, metastasis, lower cranial nerves schwannoma, lipoma, hemangioma, paraganglioma, or vertebra-basilar dolichoectasia. Primary meningeal melanocytoma is a rare neoplasm, especially when it occurs at the cerebellopontine angle. Nevus of Ota (aka oculodermal melanocytosis) is a hyperpigmentation along the distribution of the ophthalmic and maxillary branches of trigeminal nerve; it occurs due to entrapment of melanocytes at the upper third of the dermis. It may not present at birth and may show up at puberty. CASE DESCRIPTION: We describe a case of primary meningeal melanocytoma of the cerebellopontine angle associated with nevus of Ota in a 46-year-old male patient presented with 7-day history of left arm weakness and vertigo. Computed tomography and MRI showed right-sided cerebellopontine angle mass, which was resected. Histopathology confirmed the meningeal melanocytic lesion and revealed its nature. CONCLUSION: Primary meningeal melanocytoma of the brain is a rare but benign tumor; the association between meningeal melanocytoma and nevus of Ota is also rare and possibly explained by their common embryonic origin from neural crest cells. There are six cases reported so far in literature including our case for meningeal melanocytoma associated with nevus of Ota. Medknow Publications & Media Pvt Ltd 2018-12-04 /pmc/articles/PMC6293867/ /pubmed/30613434 http://dx.doi.org/10.4103/sni.sni_235_18 Text en Copyright: © 2018 Surgical Neurology International http://creativecommons.org/licenses/by-nc-sa/4.0 This is an open access journal, and articles are distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as appropriate credit is given and the new creations are licensed under the identical terms.
spellingShingle General Neurosurgery: Case Report
Elbadry, Rasha
Elazim, Ahmed Abd
Mohamed, Kazim
Issa, Mamdouh
Ayyad, Ali
Primary meningeal melanocytoma of the cerebellopontine angle associated with ipsilateral nevus of Ota: A case report
title Primary meningeal melanocytoma of the cerebellopontine angle associated with ipsilateral nevus of Ota: A case report
title_full Primary meningeal melanocytoma of the cerebellopontine angle associated with ipsilateral nevus of Ota: A case report
title_fullStr Primary meningeal melanocytoma of the cerebellopontine angle associated with ipsilateral nevus of Ota: A case report
title_full_unstemmed Primary meningeal melanocytoma of the cerebellopontine angle associated with ipsilateral nevus of Ota: A case report
title_short Primary meningeal melanocytoma of the cerebellopontine angle associated with ipsilateral nevus of Ota: A case report
title_sort primary meningeal melanocytoma of the cerebellopontine angle associated with ipsilateral nevus of ota: a case report
topic General Neurosurgery: Case Report
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6293867/
https://www.ncbi.nlm.nih.gov/pubmed/30613434
http://dx.doi.org/10.4103/sni.sni_235_18
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