Pigmented eccrine Poroma: dermoscopic and confocal features

Eccrine poroma is a rare benign adnexal tumor of epithelial cells originating from the terminal ductal portion of the sweat glands that is typically located on palms and soles, although other cutaneous sites can be affected [1]. It is usually nonpigmented even if there is a pigmented variant that co...

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Main Authors: Caterina Bombonato, Simonetta Piana, Elvira Moscarella, Aimilios Lallas, Giuseppe Argenziano, Caterina Longo
Format: Article
Language:English
Published: Mattioli1885 2016-07-01
Series:Dermatology Practical & Conceptual
Subjects:
Online Access:http://dpcj.org/index.php/dpc/article/view/139
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author Caterina Bombonato
Simonetta Piana
Elvira Moscarella
Aimilios Lallas
Giuseppe Argenziano
Caterina Longo
author_facet Caterina Bombonato
Simonetta Piana
Elvira Moscarella
Aimilios Lallas
Giuseppe Argenziano
Caterina Longo
author_sort Caterina Bombonato
collection DOAJ
description Eccrine poroma is a rare benign adnexal tumor of epithelial cells originating from the terminal ductal portion of the sweat glands that is typically located on palms and soles, although other cutaneous sites can be affected [1]. It is usually nonpigmented even if there is a pigmented variant that corresponds to 17% of cases and it is usually underdiagnosed, since it is mistakenly confused with other pigmented tumors [2,3]. Dermoscopy and reflectance confocal microscopy (RCM) may assist in the correct diagnosis of this tumor. Herein, we report one case of pigmented eccrine poroma (PEP) that simulated clinically a cutaneous melanoma or a basal cell carcinoma. Dermoscopy and RCM excluded the possibilities of those two diagnoses; the overall confocal findings were suggestive for a benign epithelial tumor. Histology was fundamental to diagnose this lesion as a pigmented eccrine poroma. Even if the diagnosis of eccrine poroma remains histopathological still, as in this case report, noninvasive tools such as dermoscopy and RCM examinations can be of help to rule out the diagnosis of melanoma. Larger studies on this rare pigmented variant of eccrine poroma could shed new light on the identification of specific diagnostic dermoscopic and confocal features.
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spelling doaj.art-fbc752a4210947d08aec82b69de1de332022-12-22T04:07:29ZengMattioli1885Dermatology Practical & Conceptual2160-93812016-07-0110.5826/dpc.0603a12Pigmented eccrine Poroma: dermoscopic and confocal featuresCaterina Bombonato0Simonetta Piana1Elvira Moscarella2Aimilios Lallas3Giuseppe Argenziano4Caterina LongoDermatology Unit, University of Modena and Reggio Emilia, ItalyPathology Unit, Arcispedale S. Maria Nuova IRCCS, Reggio Emilia, ItalyDermatology and Skin Cancer Unit, Arcispedale S. Maria Nuova IRCCS, Reggio Emilia, ItalyFirst Department of Dermatology, Aristotele University, Thessaloniki, GreeceDermatology Unit, Second University of Naples, NaplesEccrine poroma is a rare benign adnexal tumor of epithelial cells originating from the terminal ductal portion of the sweat glands that is typically located on palms and soles, although other cutaneous sites can be affected [1]. It is usually nonpigmented even if there is a pigmented variant that corresponds to 17% of cases and it is usually underdiagnosed, since it is mistakenly confused with other pigmented tumors [2,3]. Dermoscopy and reflectance confocal microscopy (RCM) may assist in the correct diagnosis of this tumor. Herein, we report one case of pigmented eccrine poroma (PEP) that simulated clinically a cutaneous melanoma or a basal cell carcinoma. Dermoscopy and RCM excluded the possibilities of those two diagnoses; the overall confocal findings were suggestive for a benign epithelial tumor. Histology was fundamental to diagnose this lesion as a pigmented eccrine poroma. Even if the diagnosis of eccrine poroma remains histopathological still, as in this case report, noninvasive tools such as dermoscopy and RCM examinations can be of help to rule out the diagnosis of melanoma. Larger studies on this rare pigmented variant of eccrine poroma could shed new light on the identification of specific diagnostic dermoscopic and confocal features.http://dpcj.org/index.php/dpc/article/view/139pigmented eccrine poromadermoscopy
spellingShingle Caterina Bombonato
Simonetta Piana
Elvira Moscarella
Aimilios Lallas
Giuseppe Argenziano
Caterina Longo
Pigmented eccrine Poroma: dermoscopic and confocal features
Dermatology Practical & Conceptual
pigmented eccrine poroma
dermoscopy
title Pigmented eccrine Poroma: dermoscopic and confocal features
title_full Pigmented eccrine Poroma: dermoscopic and confocal features
title_fullStr Pigmented eccrine Poroma: dermoscopic and confocal features
title_full_unstemmed Pigmented eccrine Poroma: dermoscopic and confocal features
title_short Pigmented eccrine Poroma: dermoscopic and confocal features
title_sort pigmented eccrine poroma dermoscopic and confocal features
topic pigmented eccrine poroma
dermoscopy
url http://dpcj.org/index.php/dpc/article/view/139
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AT simonettapiana pigmentedeccrineporomadermoscopicandconfocalfeatures
AT elviramoscarella pigmentedeccrineporomadermoscopicandconfocalfeatures
AT aimilioslallas pigmentedeccrineporomadermoscopicandconfocalfeatures
AT giuseppeargenziano pigmentedeccrineporomadermoscopicandconfocalfeatures
AT caterinalongo pigmentedeccrineporomadermoscopicandconfocalfeatures