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Metastatic malignant melanoma of unknown primary in temporalis muscle

Metastatic melanoma of unknown primary (MUP) is an uncommon melanocytic lesion found in distant sites with no evident skin involvement. This case report presents a 75-year-old woman who underwent local excision for a lump in the right temporal area, which had been present for 6 months and had been s...

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Autores principales: Grech, Alexia, Mercieca, Naomi, Calleja-Agius, Jean, Abela, Rachel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7332289/
https://www.ncbi.nlm.nih.gov/pubmed/32665835
http://dx.doi.org/10.1093/jscr/rjaa202
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author Grech, Alexia
Mercieca, Naomi
Calleja-Agius, Jean
Abela, Rachel
author_facet Grech, Alexia
Mercieca, Naomi
Calleja-Agius, Jean
Abela, Rachel
author_sort Grech, Alexia
collection PubMed
description Metastatic melanoma of unknown primary (MUP) is an uncommon melanocytic lesion found in distant sites with no evident skin involvement. This case report presents a 75-year-old woman who underwent local excision for a lump in the right temporal area, which had been present for 6 months and had been suspected to be a lipoma. Histology confirmed that the tissue excised from the temporalis muscle was composed of atypical, heavily pigmented melanocytes. Her history was negative for melanocytic lesions, and examination and extensive investigation including imaging had failed to identify a primary lesion. The patient is currently being followed up.
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spelling pubmed-73322892020-07-13 Metastatic malignant melanoma of unknown primary in temporalis muscle Grech, Alexia Mercieca, Naomi Calleja-Agius, Jean Abela, Rachel J Surg Case Rep Case Report Metastatic melanoma of unknown primary (MUP) is an uncommon melanocytic lesion found in distant sites with no evident skin involvement. This case report presents a 75-year-old woman who underwent local excision for a lump in the right temporal area, which had been present for 6 months and had been suspected to be a lipoma. Histology confirmed that the tissue excised from the temporalis muscle was composed of atypical, heavily pigmented melanocytes. Her history was negative for melanocytic lesions, and examination and extensive investigation including imaging had failed to identify a primary lesion. The patient is currently being followed up. Oxford University Press 2020-07-02 /pmc/articles/PMC7332289/ /pubmed/32665835 http://dx.doi.org/10.1093/jscr/rjaa202 Text en Published by Oxford University Press and JSCR Publishing Ltd. All rights reserved. © The Author(s) 2020. http://creativecommons.org/licenses/by-nc/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com
spellingShingle Case Report
Grech, Alexia
Mercieca, Naomi
Calleja-Agius, Jean
Abela, Rachel
Metastatic malignant melanoma of unknown primary in temporalis muscle
title Metastatic malignant melanoma of unknown primary in temporalis muscle
title_full Metastatic malignant melanoma of unknown primary in temporalis muscle
title_fullStr Metastatic malignant melanoma of unknown primary in temporalis muscle
title_full_unstemmed Metastatic malignant melanoma of unknown primary in temporalis muscle
title_short Metastatic malignant melanoma of unknown primary in temporalis muscle
title_sort metastatic malignant melanoma of unknown primary in temporalis muscle
topic Case Report
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7332289/
https://www.ncbi.nlm.nih.gov/pubmed/32665835
http://dx.doi.org/10.1093/jscr/rjaa202
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