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Melanoacanthoma: a potential pitfall of reflectance confocal microscopy()()

Melanoacanthoma is a rare variant of seborrheic keratosis, which is notable for dark pigmentation and fast radial growth, making it difficult to distinguish from melanoma. Histologically, it is characterized by proliferation of keratinocytes and dendritic melanocytes. The authors report a scalp lesi...

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Detalles Bibliográficos
Autores principales: Porto, Ana Carolina Souza, Blumetti, Tatiana Pinto, Macedo, Mariana Petaccia de, Braga, Juliana Casagrande Tavoloni
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Sociedade Brasileira de Dermatologia 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6939077/
https://www.ncbi.nlm.nih.gov/pubmed/31789261
http://dx.doi.org/10.1016/j.abd.2019.01.002
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author Porto, Ana Carolina Souza
Blumetti, Tatiana Pinto
Macedo, Mariana Petaccia de
Braga, Juliana Casagrande Tavoloni
author_facet Porto, Ana Carolina Souza
Blumetti, Tatiana Pinto
Macedo, Mariana Petaccia de
Braga, Juliana Casagrande Tavoloni
author_sort Porto, Ana Carolina Souza
collection PubMed
description Melanoacanthoma is a rare variant of seborrheic keratosis, which is notable for dark pigmentation and fast radial growth, making it difficult to distinguish from melanoma. Histologically, it is characterized by proliferation of keratinocytes and dendritic melanocytes. The authors report a scalp lesion, fast growing, suspected by dermoscopy and confocal microscopy examination, with dendritic cells distributed throughout the lesion. Based on these findings, it was not possible to classify this lesion as clearly benign, so it was excised. Histopathologic evaluation and immunostain were consistent with melanoacanthoma.
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spelling pubmed-69390772020-01-06 Melanoacanthoma: a potential pitfall of reflectance confocal microscopy()() Porto, Ana Carolina Souza Blumetti, Tatiana Pinto Macedo, Mariana Petaccia de Braga, Juliana Casagrande Tavoloni An Bras Dermatol Images in Dermatology Melanoacanthoma is a rare variant of seborrheic keratosis, which is notable for dark pigmentation and fast radial growth, making it difficult to distinguish from melanoma. Histologically, it is characterized by proliferation of keratinocytes and dendritic melanocytes. The authors report a scalp lesion, fast growing, suspected by dermoscopy and confocal microscopy examination, with dendritic cells distributed throughout the lesion. Based on these findings, it was not possible to classify this lesion as clearly benign, so it was excised. Histopathologic evaluation and immunostain were consistent with melanoacanthoma. Sociedade Brasileira de Dermatologia 2019 2019-10-26 /pmc/articles/PMC6939077/ /pubmed/31789261 http://dx.doi.org/10.1016/j.abd.2019.01.002 Text en © 2019 Sociedade Brasileira de Dermatologia. Published by Elsevier España, S.L.U. http://creativecommons.org/licenses/by/4.0/ This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Images in Dermatology
Porto, Ana Carolina Souza
Blumetti, Tatiana Pinto
Macedo, Mariana Petaccia de
Braga, Juliana Casagrande Tavoloni
Melanoacanthoma: a potential pitfall of reflectance confocal microscopy()()
title Melanoacanthoma: a potential pitfall of reflectance confocal microscopy()()
title_full Melanoacanthoma: a potential pitfall of reflectance confocal microscopy()()
title_fullStr Melanoacanthoma: a potential pitfall of reflectance confocal microscopy()()
title_full_unstemmed Melanoacanthoma: a potential pitfall of reflectance confocal microscopy()()
title_short Melanoacanthoma: a potential pitfall of reflectance confocal microscopy()()
title_sort melanoacanthoma: a potential pitfall of reflectance confocal microscopy()()
topic Images in Dermatology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6939077/
https://www.ncbi.nlm.nih.gov/pubmed/31789261
http://dx.doi.org/10.1016/j.abd.2019.01.002
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