Giant melanoacanthoma mimicking malignant melanoma
Melanoacanthoma denotes a rare variant of pigmented seborrheic keratosis. A 65-year-old male farmer had pigmented, verrucous, itchy, highly painful, progressively growing irregularly oval plaque on left side of lower back for the past five years. The indurated lesion, measuring maximum diameter 10 c...
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2011-01-01
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doaj-64418b6e557e4c57ab281c5e44c77b842020-11-24T23:45:12ZengWolters Kluwer Medknow PublicationsIndian Journal of Dermatology0019-51541998-36112011-01-01561798110.4103/0019-5154.77559Giant melanoacanthoma mimicking malignant melanomaVikas ShankarJayoti NandiKisalay GhoshSanjay GhoshMelanoacanthoma denotes a rare variant of pigmented seborrheic keratosis. A 65-year-old male farmer had pigmented, verrucous, itchy, highly painful, progressively growing irregularly oval plaque on left side of lower back for the past five years. The indurated lesion, measuring maximum diameter 10 cm Χ 5 cm, had no discharge, bleeding, ulceration, or associated lymphadenopathy. Dermoscopy showed regular pigmentary network and cribiform pattern of ridges without any feature of malignant melanoma. Histopathology showed well-defined islands of basaloid cells interspersed with large and richly dendritic melanocytes. The lesion was totally excised followed by skin grafting. Our patient was unique in its massive size and clinical resemblance with malignant melanoma. The diagnosis was confirmed by dermoscopy and skin biopsy.http://www.e-ijd.org/article.asp?issn=0019-5154;year=2011;volume=56;issue=1;spage=79;epage=81;aulast=ShankarMelanoacanthomaseborrheic keratosispigmented seborrheic keratosismelanomamalignant melanomadermoscopy |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Vikas Shankar Jayoti Nandi Kisalay Ghosh Sanjay Ghosh |
spellingShingle |
Vikas Shankar Jayoti Nandi Kisalay Ghosh Sanjay Ghosh Giant melanoacanthoma mimicking malignant melanoma Indian Journal of Dermatology Melanoacanthoma seborrheic keratosis pigmented seborrheic keratosis melanoma malignant melanoma dermoscopy |
author_facet |
Vikas Shankar Jayoti Nandi Kisalay Ghosh Sanjay Ghosh |
author_sort |
Vikas Shankar |
title |
Giant melanoacanthoma mimicking malignant melanoma |
title_short |
Giant melanoacanthoma mimicking malignant melanoma |
title_full |
Giant melanoacanthoma mimicking malignant melanoma |
title_fullStr |
Giant melanoacanthoma mimicking malignant melanoma |
title_full_unstemmed |
Giant melanoacanthoma mimicking malignant melanoma |
title_sort |
giant melanoacanthoma mimicking malignant melanoma |
publisher |
Wolters Kluwer Medknow Publications |
series |
Indian Journal of Dermatology |
issn |
0019-5154 1998-3611 |
publishDate |
2011-01-01 |
description |
Melanoacanthoma denotes a rare variant of pigmented seborrheic keratosis. A 65-year-old male farmer had pigmented, verrucous, itchy, highly painful, progressively growing irregularly oval plaque on left side of lower back for the past five years. The indurated lesion, measuring maximum diameter 10 cm Χ 5 cm, had no discharge, bleeding, ulceration, or associated lymphadenopathy. Dermoscopy showed regular pigmentary network and cribiform pattern of ridges without any feature of malignant melanoma. Histopathology showed well-defined islands of basaloid cells interspersed with large and richly dendritic melanocytes. The lesion was totally excised followed by skin grafting. Our patient was unique in its massive size and clinical resemblance with malignant melanoma. The diagnosis was confirmed by dermoscopy and skin biopsy. |
topic |
Melanoacanthoma seborrheic keratosis pigmented seborrheic keratosis melanoma malignant melanoma dermoscopy |
url |
http://www.e-ijd.org/article.asp?issn=0019-5154;year=2011;volume=56;issue=1;spage=79;epage=81;aulast=Shankar |
work_keys_str_mv |
AT vikasshankar giantmelanoacanthomamimickingmalignantmelanoma AT jayotinandi giantmelanoacanthomamimickingmalignantmelanoma AT kisalayghosh giantmelanoacanthomamimickingmalignantmelanoma AT sanjayghosh giantmelanoacanthomamimickingmalignantmelanoma |
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