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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...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Sociedade Brasileira de Dermatologia
2019
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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. |
format | Online Article Text |
id | pubmed-6939077 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Sociedade Brasileira de Dermatologia |
record_format | MEDLINE/PubMed |
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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