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Melanoacanthoma: a potential pitfall of reflectance confocal microscopy.
An Bras Dermatol. 2019 Nov - Dec; 94(6):747-750.AB

Abstract

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.

Authors+Show Affiliations

Cutaneous Oncology Department, AC Camargo Cancer Center, São Paulo, SP, Brazil. Electronic address: carolsporto1@hotmail.com.Cutaneous Oncology Department, AC Camargo Cancer Center, São Paulo, SP, Brazil.Cutaneous Oncology Department, AC Camargo Cancer Center, São Paulo, SP, Brazil.Cutaneous Oncology Department, AC Camargo Cancer Center, São Paulo, SP, Brazil.

Pub Type(s)

Case Reports
Journal Article

Language

eng

PubMed ID

31789261

Citation

Porto, Ana Carolina Souza, et al. "Melanoacanthoma: a Potential Pitfall of Reflectance Confocal Microscopy." Anais Brasileiros De Dermatologia, vol. 94, no. 6, 2019, pp. 747-750.
Porto ACS, Blumetti TP, Macedo MP, et al. Melanoacanthoma: a potential pitfall of reflectance confocal microscopy. An Bras Dermatol. 2019;94(6):747-750.
Porto, A. C. S., Blumetti, T. P., Macedo, M. P., & Braga, J. C. T. (2019). Melanoacanthoma: a potential pitfall of reflectance confocal microscopy. Anais Brasileiros De Dermatologia, 94(6), 747-750. https://doi.org/10.1016/j.abd.2019.01.002
Porto ACS, et al. Melanoacanthoma: a Potential Pitfall of Reflectance Confocal Microscopy. An Bras Dermatol. 2019 Nov - Dec;94(6):747-750. PubMed PMID: 31789261.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Melanoacanthoma: a potential pitfall of reflectance confocal microscopy. AU - Porto,Ana Carolina Souza, AU - Blumetti,Tatiana Pinto, AU - Macedo,Mariana Petaccia de, AU - Braga,Juliana Casagrande Tavoloni, Y1 - 2019/10/26/ PY - 2018/08/15/received PY - 2019/01/10/accepted PY - 2019/12/4/pubmed PY - 2020/1/15/medline PY - 2019/12/3/entrez KW - Confocal microscopy KW - Dermoscopy KW - Diagnosis KW - Melanoma KW - Seborrheic keratosis SP - 747 EP - 750 JF - Anais brasileiros de dermatologia JO - An Bras Dermatol VL - 94 IS - 6 N2 - 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. SN - 1806-4841 UR - https://www.unboundmedicine.com/medline/citation/31789261/Melanoacanthoma:_a_potential_pitfall_of_reflectance_confocal_microscopy L2 - https://linkinghub.elsevier.com/retrieve/pii/S0365-0596(19)30075-3 DB - PRIME DP - Unbound Medicine ER -