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1
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Akay BN, Mart HME, Heper AO. Dermoscopic Features of Eccrine Poromas in Diverse Skin Phototypes: A Retrospective Study of 26 Cases. Dermatol Pract Concept 2025; 15:dpc.1502a5071. [PMID: 40401879 PMCID: PMC12090919 DOI: 10.5826/dpc.1502a5071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/18/2024] [Indexed: 05/23/2025] Open
Abstract
INTRODUCTION Eccrine poroma (EP) is a benign adnexal tumor. Establishing a definitive diagnosis based on clinical and dermoscopic findings can be challenging. OBJECTIVES The aim of this study was to perform a comprehensive analysis of the dermoscopic features of pigmented, hypopigmented, and nonpigmented variants of EP and to compare these dermoscopic features in patients with dark and light Fitzpatrick skin phototypes. METHODS A total of 26 cases of histopathologically confirmed EP were included. Each case was categorized as pigmented, hypopigmented, or nonpigmented based on the melanin content within the lesion. Patients were classified according to their Fitzpatrick skin phototypes. Dermoscopic images were subjected to revised pattern analysis, and the results were compared with the existing literature. RESULTS Regarding Fitzpatrick skin phototype, four (15.4%), 11 (42.3%), six (23.1%), and five (19.2%) patients had Fitzpatrick skin phototypes II, III, IV, and V, respectively. Of the cases, 17 (65.4%) were classified as nonpigmented, three (11.5%) as hypopigmented, and six (23.1%) as pigmented EP. All pigmented EP cases occurred in patients with dark skin and were located on non-acral sites. Polymorphic vascular pattern, branched vessels with rounded endings, linear-irregular vessels, interlacing white areas around vessels, and collarettes were more frequently observed in patients with light skin. In contrast, clod vessels, coiled vessels, white lines, ulceration, fiber sign, scales, and structureless areas were more common in patients with dark skin. CONCLUSIONS This study underscores the significant dermoscopic diversity observed in EP, revealing distinct patterns based on pigmentation and Fitzpatrick skin phototypes.
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Affiliation(s)
- Bengu Nisa Akay
- Department of Dermatology, Faculty of Medicine, Ankara University, Ankara, Turkey
| | | | - Aylin Okcu Heper
- Department of Pathology, Faculty of Medicine, Ankara University, Ankara, Turkey
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2
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Nayak TV, Konda D, Sharma A. Pigmented Eccrine Poroma on the Palm: A Rare Variant in an Atypical Site. Indian J Dermatol 2023; 68:690-691. [PMID: 38371545 PMCID: PMC10868987 DOI: 10.4103/ijd.ijd_585_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2024] Open
Affiliation(s)
- T Vijayalakshmi Nayak
- From the Department of Dermatology, All India Institute of Medical Sciences, Bibinagar, Telangana, India E-mail:
| | - Deepthi Konda
- From the Department of Dermatology, All India Institute of Medical Sciences, Bibinagar, Telangana, India E-mail:
| | - Abhimanyu Sharma
- Department of Pathology, All India Institute of Medical Sciences, Bibinagar, Telangana, India
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3
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Ishikawa M, Ohtsuka M, Yamamoto T. Pigmented poroma on the scalp clinically mimicking basal cell carcinoma. An Bras Dermatol 2021; 96:793-795. [PMID: 34565646 PMCID: PMC8790218 DOI: 10.1016/j.abd.2020.08.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 07/30/2020] [Accepted: 08/06/2020] [Indexed: 11/16/2022] Open
Affiliation(s)
- Masato Ishikawa
- Department of Dermatology, Fukushima Medical University, Fukushima, Japan.
| | - Mikio Ohtsuka
- Department of Dermatology, Fukushima Medical University, Fukushima, Japan
| | - Toshiyuki Yamamoto
- Department of Dermatology, Fukushima Medical University, Fukushima, Japan
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4
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Igari S, Ito T, Ishikawa M, Hiraiwa T, Yamamoto T. Secondary Amyloid Deposition in Pigmented Poroma. ACTAS DERMO-SIFILIOGRAFICAS 2021; 112:S1578-2190(21)00187-6. [PMID: 34147678 DOI: 10.1016/j.adengl.2021.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- S Igari
- Department of Dermatology, Fukushima Medical University, Fukushima, Japan
| | - T Ito
- Department of Dermatology, Fukushima Medical University, Fukushima, Japan
| | - M Ishikawa
- Department of Dermatology, Fukushima Medical University, Fukushima, Japan
| | - T Hiraiwa
- Department of Dermatology, Fukushima Medical University, Fukushima, Japan
| | - T Yamamoto
- Department of Dermatology, Fukushima Medical University, Fukushima, Japan.
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5
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Igari S, Ito T, Ishikawa M, Hiraiwa T, Yamamoto T. Secondary Amyloid Deposition in Pigmented Poroma. ACTAS DERMO-SIFILIOGRAFICAS 2021; 112:S0001-7310(21)00172-1. [PMID: 33964220 DOI: 10.1016/j.ad.2020.01.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 12/20/2019] [Accepted: 01/26/2020] [Indexed: 11/16/2022] Open
Affiliation(s)
- S Igari
- Department of Dermatology, Fukushima Medical University, Fukushima, Japan
| | - T Ito
- Department of Dermatology, Fukushima Medical University, Fukushima, Japan
| | - M Ishikawa
- Department of Dermatology, Fukushima Medical University, Fukushima, Japan
| | - T Hiraiwa
- Department of Dermatology, Fukushima Medical University, Fukushima, Japan
| | - T Yamamoto
- Department of Dermatology, Fukushima Medical University, Fukushima, Japan.
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6
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O'Quinn M, Gioe OA. Recurrent lesion on toe of young man. JAAD Case Rep 2020; 6:1003-1005. [PMID: 32995430 PMCID: PMC7508901 DOI: 10.1016/j.jdcr.2020.07.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Affiliation(s)
- Marguerite O'Quinn
- Louisiana State University Health Sciences Center, School of Medicine, New Orleans, Louisiana
| | - Olivia A. Gioe
- Louisiana State University Health Sciences Center, Department of Dermatology, New Orleans, Louisiana
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7
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Ha DL, Lee GW, Shin K, Kim HS, Ko HC, Kim BS, Kim MB. Characteristic Clinical and Dermoscopic Features of Nonvolar Poroma. J Cutan Med Surg 2020; 25:142-149. [PMID: 32880198 DOI: 10.1177/1203475420952432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND A poroma typically presents as a solitary, pink-to-red papule or nodule in acral volar areas. However, in nonvolar areas, this typical clinical feature (TCF) can be difficult to identify. OBJECTIVE We aimed to compare clinical and dermoscopic characteristics between nonvolar poroma (NVP) and volar (ie, typical) poroma (VP). METHODS We assessed the clinical and dermoscopic characteristics of 40 patients with poromas who were divided into the NVP and VP groups. RESULTS Of the 40 patients, 20 (50.0%) were allocated to the NVP group and 20 (50.0%) to the VP group. Pigmented variants were more common in the NVP group than in the VP group (60.0% vs 5.0%). The TCF of poroma was observed less frequently in the NVP than the VP group (45.0% vs 85.0%). Approximately one-third (30.0%) of patients with NVP received an initial clinical diagnosis of skin cancer. Dermoscopic patterns associated with melanoma or basal cell carcinoma were more common in the NVP group than in the VP group (65% vs 30%). CONCLUSIONS Skin cancer-associated clinicodermoscopic features were more frequently observed in patients with NVP, who simultaneously lost dermoscopic patterns associated to poromas and acquired those associated with skin cancer, than those with VP.
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Affiliation(s)
- Dae-Lyong Ha
- 34996 Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea.,220312 Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Gi-Wook Lee
- 34996 Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea
| | - Kihyuk Shin
- 34996 Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea
| | - Hoon-Soo Kim
- 34996 Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea.,220312 Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Hyun-Chang Ko
- 34996 Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea
| | - Byung-Soo Kim
- 34996 Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea.,220312 Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Moon-Bum Kim
- 34996 Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea.,220312 Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
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8
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Chessa MA, Patrizi A, Baraldi C, Fanti PA, Barisani A, Vaccari S. Dermoscopic-Histopathological Correlation of Eccrine Poroma: An Observational Study. Dermatol Pract Concept 2019; 9:283-291. [PMID: 31723462 DOI: 10.5826/dpc.0904a07] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/15/2019] [Indexed: 12/19/2022] Open
Abstract
Background Eccrine poroma (EP) is a benign adnexal neoplasm that can be pigmented in 17% of cases. Four histopathological variants of EP exist. Dermoscopically, EP can mimic many other skin neoplasms. Objectives To provide a dermoscopic-histopathological correlation of EP, classifying the clinical and dermoscopic features of EPs on the basis of their histopathological subtype, in an attempt to better characterize these entities. Patients and Methods A single-center retrospective study was conducted. Clinical data were collected; patients were classified on the basis of the 4 histopathological variants of EPs. Dermoscopic images were reviewed. A dermoscopic-histopathological correlation was performed, and the results were compared with literature data. Results Twenty-six lesions were included, both pigmented and nonpigmented. Three of the 4 histopathological variants were identified. Different dermoscopic features were observed for each distinct histopathological subtype of EP. The lesions mimicked different types of other skin neoplasms, in particular: nonpigmented hidroacanthoma simplex resembled nonmelanoma skin cancer; pigmented hidroacanthoma simplex appeared like a seborrheic keratosis or a solar lentigo; EPs sensu stricto presented as pink nodules if nonpigmented and were similar to seborrheic keratosis if pigmented; dermal duct tumors appeared as pigmented nodular lesions. Conclusions Distinct dermoscopic features appeared to be recurrent in each histopathological variant. Dermoscopy can provide important clues for the diagnosis of EP; the final diagnosis is allowed by histopathology. To achieve a correct diagnosis of EP, because of its clinical and dermoscopic variability, surgical excision is recommended.
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Affiliation(s)
- Marco A Chessa
- Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Italy
| | - Annalisa Patrizi
- Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Italy
| | - Carlotta Baraldi
- Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Italy
| | - Pier Alessandro Fanti
- Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Italy
| | - Alessia Barisani
- Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Italy
| | - Sabina Vaccari
- Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Italy
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9
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Pigmented Lesion on the Buttock: Answer. Am J Dermatopathol 2019; 41:690-691. [PMID: 31433327 DOI: 10.1097/dad.0000000000001199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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10
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Saraiva MIR, Ferreira PS, Avancini J, Valente NYS. Dermatoscopy: an auxiliary resource for the diagnosis of poroid neoplasms. An Bras Dermatol 2019; 93:896-898. [PMID: 30484540 PMCID: PMC6256207 DOI: 10.1590/abd1806-4841.20187570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 11/06/2017] [Indexed: 11/27/2022] Open
Abstract
Poroid neoplasms are benign epithelial proliferations with eccrine sweat gland differentiation. They are a challenging diagnosis because of the clinical heterogeneity, being able to mimic several malignant neoplasms. They are classified into classic poroma, hidroacanthoma simplex, dermal duct tumor and poroid hidradenoma. Association of histological subtypes occurs in more than 25% of cases. We report a case of a combined poroid neoplasia of classical poroma and poroid hidradenoma, reviewing its dermatoscopic features.
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Affiliation(s)
| | - Paula Silva Ferreira
- Service of Dermatology, Hospital das Clínicas, Faculdade de
Medicina, Universidade de São Paulo, São Paulo (SP), Brazil
| | - João Avancini
- Service of Dermatology, Hospital das Clínicas, Faculdade de
Medicina, Universidade de São Paulo, São Paulo (SP), Brazil
| | - Neusa Yuriko Sakai Valente
- Service of Dermatology, Hospital das Clínicas, Faculdade de
Medicina, Universidade de São Paulo, São Paulo (SP), Brazil
- Service of Dermatology, Hospital do Servidor Público
Estadual, São Paulo (SP), Brazil
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11
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Wollina U. Dermoscopy of early non-ulcerated livedoid vasculopathy. ACTA DERMATOVENEROLOGICA ALPINA PANNONICA ET ADRIATICA 2018. [DOI: 10.15570/actaapa.2018.29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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12
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Abstract
Cutaneous adnexal tumors include lesions with apocrine, eccrine, follicular, sebaceous, and mixed differentiation. Most are benign and sporadic, although malignant forms are occasionally observed and some cases develop in the setting of inherited syndromes. These tumors often cause immense diagnostic difficulty. Dermoscopy is a noninvasive technique that has greatly improved the diagnostic accuracy of different skin lesions, including these tumors. We provide a review of the literature on the dermoscopic structures and patterns associated with adnexal tumors. Most patterns associated with this kind of tumor are nonspecific and are observed in other nonadnexal tumors, especially in basal cell carcinomas.
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Affiliation(s)
- Pedro Zaballos
- Dermatology Department, Hospital Sant Pau i Santa Tecla, C/ Joan Fuster s/n, 43007 Tarragona, Spain.
| | - Ignacio Gómez-Martín
- Dermatology Department, Hospital Sant Pau i Santa Tecla, C/ Joan Fuster s/n, 43007 Tarragona, Spain
| | - José María Martin
- Dermatology Department, Hospital Clínico Universitario, Avenida Blasco Ibáñez 17, 46010 Valencia, Spain
| | - José Bañuls
- Dermatology Department, Hospital General Universitario de Alicante, ISABIAL, C/Maestro Alonso 109, 03010 Alicante, Spain
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13
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Marchetti MA, Marino ML, Virmani P, Dusza SW, Marghoob AA, Nazzaro G, Lallas A, Landi C, Cabo H, Quiñones R, Gomez E, Puig S, Carrera C. Dermoscopic features and patterns of poromas: a multicentre observational case-control study conducted by the International Dermoscopy Society. J Eur Acad Dermatol Venereol 2017; 32:1263-1271. [PMID: 29194789 DOI: 10.1111/jdv.14729] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 11/09/2017] [Indexed: 12/20/2022]
Abstract
BACKGROUND Poromas are benign cutaneous sweat gland tumours that are challenging to identify. The dermoscopic features of poromas are not well characterized. OBJECTIVE To determine the clinical-dermoscopic features of poromas. METHODS Cross-sectional, observational study of 113 poromas and 106 matched control lesions from 16 contributors and eight countries. Blinded reviewers evaluated the clinical and dermoscopic features present in each clinical and dermoscopic image. RESULTS Poromas were most commonly non-pigmented (85.8%), papules (35.4%) and located on non-acral sites (65.5%). In multivariate analysis, dermoscopic features associated with poroma included white interlacing areas around vessels (OR: 7.9, 95% CI: 1.9-32.5, P = 0.004), yellow structureless areas (OR: 2.5, 95% CI: 1.1-6.0, P = 0.04), milky-red globules (OR: 3.9, 95% CI: 1.4-11.1, P = 0.01) and poorly visualized vessels (OR: 33.3, 95% CI: 1.9-586.5, P = 0.02). The presence of branched vessels with rounded endings was positively associated with poromas but did not reach statistical significance (OR: 2.4, 95% CI: 0.8-6.5, P = 0.10). The presence of any of these five features was associated with a sensitivity and specificity of 62.8% and 82.0%, respectively. CONCLUSION We identified dermoscopic features that are specific to the diagnosis of poroma. Overall, however, the prevalence of these features was low. Significant clinical and dermoscopic variability is a hallmark of these uncommon tumours, which are most prevalent on non-acral sites.
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Affiliation(s)
- M A Marchetti
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - M L Marino
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - P Virmani
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - S W Dusza
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - A A Marghoob
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - G Nazzaro
- Department of Physiopathology and Transplantation, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
| | - A Lallas
- First Department of Dermatology, Aristotle University, Thessaloniki, Greece
| | - C Landi
- Dermatologic Unit, Surgical Department, "Infermi" Hospital, Rimini, Italy
| | - H Cabo
- Dermatology Section, Medical Research Institute, University of Buenos Aires, Buenos Aires, Argentina
| | - R Quiñones
- Instituto Dermatologico de Jalisco, Guadalajara, Jal, Mexico
| | - E Gomez
- Dermatology Center "Dr Ladislao de la Pascua", Mexico City, Mexico
| | - S Puig
- Melanoma Unit, Department of Dermatology, Hospital Clinic Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), University of Barcelona, Barcelona, Spain
| | - C Carrera
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA.,Melanoma Unit, Department of Dermatology, Hospital Clinic Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), University of Barcelona, Barcelona, Spain
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14
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Ichiyama S, Hoashi T, Funasaka Y, Mikami E, Akiyama M, Esaki E, Kubo M, Ansai SI, Tanaka M, Saeki H. Pigmented poroma on the temporal region dermoscopically mimicking basal cell carcinoma: A report of two cases. J Dermatol 2017; 45:e94-e95. [PMID: 29139150 DOI: 10.1111/1346-8138.14129] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Susumu Ichiyama
- Department of Dermatology, Nippon Medical School, Tokyo, Japan
| | | | - Yoko Funasaka
- Department of Dermatology, Nippon Medical School, Tokyo, Japan
| | - Erina Mikami
- Department of Dermatology, Nippon Medical School, Tokyo, Japan
| | - Michiko Akiyama
- Department of Dermatology, Nippon Medical School, Tokyo, Japan
| | - Eiko Esaki
- Department of Dermatology, Nippon Medical School, Tokyo, Japan
| | - Masahide Kubo
- JCHO Tokyo Shinjuku Medical Center, Tokyo, Japan.,JCHO Kumamoto General Hospital, Kumamoto, Japan
| | - Shin-Ichi Ansai
- Nippon Medical School Musashikosugi Hospital, Kanagawa, Japan
| | - Masaru Tanaka
- Tokyo Women's Medical University Medical Center East, Tokyo, Japan
| | - Hidehisa Saeki
- Department of Dermatology, Nippon Medical School, Tokyo, Japan
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15
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Dong H, Zhang H, Liu N, Soyer HP. Dermoscopy of a pigmented apocrine porocarcinoma arising from a pigmented hidroacanthoma simplex. Australas J Dermatol 2017; 59:e151-e152. [PMID: 28728215 DOI: 10.1111/ajd.12624] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Huiting Dong
- Department of Dermatology, the First Affiliated Hospital, Zhengzhou University, Zhengzhou, China
| | - Hang Zhang
- Department of Dermatology, the First Affiliated Hospital, Zhengzhou University, Zhengzhou, China
| | - Niu Liu
- Department of Dermatology, the First Affiliated Hospital, Zhengzhou University, Zhengzhou, China
| | - H Peter Soyer
- Dermatology Research Centre, The University of Queensland, Diamantina Institute, Translational Research Centre, Brisbane, Australia
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16
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Bombonato C, Piana S, Moscarella E, Lallas A, Argenziano G, Longo C. Pigmented eccrine poroma: dermoscopic and confocal features. Dermatol Pract Concept 2016; 6:59-62. [PMID: 27648386 PMCID: PMC5006555 DOI: 10.5826/dpc.0603a12] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2016] [Accepted: 05/27/2016] [Indexed: 12/20/2022] Open
Abstract
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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Affiliation(s)
| | - Simonetta Piana
- Pathology Unit, Arcispedale S. Maria Nuova, IRCCS, Reggio Emilia, Italy
| | - Elvira Moscarella
- Dermatology and Skin Cancer Unit, Arcispedale S. Maria Nuova, IRCCS, Reggio Emilia, Italy
| | - Aimillios Lallas
- First Department of Dermatology, Aristotle University, Thessaloniki, Greece
| | | | - Caterina Longo
- Dermatology and Skin Cancer Unit, Arcispedale S. Maria Nuova, IRCCS, Reggio Emilia, Italy
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17
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Abstract
Dermoscopy is an aiding method in the visualization of the epidermis and dermis. It
is usually used to diagnose melanocytic lesions. In recent years, dermoscopy has
increasingly been used to diagnose non-melanocytic lesions. Certain vascular
structures, their patterns of arrangement and additional criteria may demonstrate
lesion-specific characteristics. In this review, vascular structures and their
arrangements are discussed separately in the light of conflicting views and an
overview of recent literature.
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Affiliation(s)
| | - Derya Ucmak
- Faculty of Medicine, Dicle University, Diyarbakır, TR
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18
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Ayhan E, Ucmak D, Baykara SN, Akkurt ZM, Arica M. Clinical and dermoscopic evaluation of cutaneous leishmaniasis. Int J Dermatol 2014; 54:193-201. [DOI: 10.1111/ijd.12686] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Erhan Ayhan
- Department of Dermatology; Tokat Zile State Hospital; Tokat Turkey
| | - Derya Ucmak
- Department of Dermatology; Dicle University School of Medicine; Diyarbakır Turkey
| | - Sule Nergiz Baykara
- Department of Dermatology; Dicle University School of Medicine; Diyarbakır Turkey
| | - Zeynep Meltem Akkurt
- Department of Dermatology; Dicle University School of Medicine; Diyarbakır Turkey
| | - Mustafa Arica
- Department of Dermatology; Dicle University School of Medicine; Diyarbakır Turkey
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19
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Almeida FCD, Cavalcanti SMDM, Medeiros ACR, Teixeira MAG. Pigmented eccrine poroma: report of an atypical case with the use of dermoscopy. An Bras Dermatol 2014; 88:803-6. [PMID: 24173189 PMCID: PMC3798360 DOI: 10.1590/abd1806-4841.20131255] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2011] [Accepted: 09/25/2012] [Indexed: 11/21/2022] Open
Abstract
Poromas are uncommon benign neoplasms originating from the terminal ductal portion of the sweat glands, mainly characterized by skin-colored or pink papules or nodules, usually on the extremities. Due to their rarity, the pigmented form clinical hypothesis is hardly ever suggested and psychopathology is fundamental. We report a case of pigmented eccrine poroma in the right palmer area, a location considered atypical. We stress the importance of dermoscopy as a method for diagnosis of poromas, especially in the differential diagnosis with other pigmented nodular-popular lesions.
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Oiso N, Matsuda H, Kawada A. Biopsy-proven pigmented poroma with no vascular structure in dermoscopy. Int J Dermatol 2014; 53:e334-5. [DOI: 10.1111/ijd.12209] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Naoki Oiso
- Department of Dermatology; Kinki University Faculty of Medicine; Osaka-Sayama Japan
| | - Hiromasa Matsuda
- Department of Dermatology; Kinki University Faculty of Medicine; Osaka-Sayama Japan
| | - Akira Kawada
- Department of Dermatology; Kinki University Faculty of Medicine; Osaka-Sayama Japan
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Sgouros D, Piana S, Argenziano G, Longo C, Moscarella E, Karaarslan IK, Akalin T, Özdemir F, Zalaudek I. Clinical, Dermoscopic and Histopathological Features of Eccrine Poroid Neoplasms. Dermatology 2013; 227:175-9. [DOI: 10.1159/000354152] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2012] [Accepted: 07/02/2013] [Indexed: 11/19/2022] Open
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Kassuga LEBP, Jeunon T, Sousa MAJ, Campos-do-Carmo G. Pigmented poroma with unusual location and dermatoscopic features. Dermatol Pract Concept 2013; 2:203a07. [PMID: 23785609 PMCID: PMC3663355 DOI: 10.5826/dpc.0203a07] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2012] [Accepted: 03/31/2012] [Indexed: 12/03/2022] Open
Abstract
Poroma is a benign adnexal neoplasm with atn “poroid”/ductal differentiation that mimics benign and malignant skin tumors. Histopathology shows circumscribed proliferation of poroid cells intermingled with a variable number of cuticular cells. We report a case of pigmented poroma located on the face that simulated clinically and dermatoscopically a pigmented basal cell carcinoma. The features of pigmented and non-pigmented poromas were revisited in order to assist in the diagnosis.
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Abstract
Hidroacanthoma simplex (HAS) is a rare skin appendage tumor and is recognized as an intraepidermal variant of poroma. Pigmented HAS is an extremely rare variant with dendritic melanocytes and/or melanin pigment in the tumor cells and a few cases of pigmented HAS have been reported in the English literature. We herein report a case of pigmented HAS and discuss the clinicopathological features of pigmented HAS and the pitfall in the diagnosis of black lesions.
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Sezer E, Erkek E, Duman D, Sahin S, Çetin E. Dermatoscopy as an Adjunctive Diagnostic Tool in Aquagenic Syringeal Acrokeratoderma. Dermatology 2012; 225:97-9. [DOI: 10.1159/000339775] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2011] [Accepted: 05/26/2012] [Indexed: 11/19/2022] Open
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