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Pigmented Poroma in the Groin Area: A Rare Presentation of an Uncommon Entity

Year: 2025

Type: article

Abstract: Eccrine poroma (EP) is a rare benign adnexal tumour originating from sweat glands, typically found on the palms and soles. Pigmented variants are even rarer and can be easily misdiagnosed as other pigmented tumours. This report presents a unique case of pigmented eccrine poroma in a 60-year-old female. The lesion was located in the groin which is an uncommon site for EP. The patient had a slowly growing, painful nodule. Several differential diagnoses were initially considered. Histological examination confirmed the diagnosis of pigmented eccrine poroma, revealing characteristic features such as small cuboidal cells with basophilic nuclei and melanin deposition. This case underscores the importance of considering pigmented eccrine poroma in the differential diagnosis of solitary pigmented nodules in atypical locations and highlights the role of histopathology and emerging non-invasive diagnostic tools in its accurate identification.

Source: Indian Dermatology Online Journal

DOI: 10.4103/idoj.idoj_800_24

Authors: Jeanne M. Dsouza, Mariya B. Muringatheri, Ankur Singh, Priyanka Hemrajani

Institutions: Kasturba Medical College, Manipal, Employees State Insurance Post Graduate Institute of Medical Sciences and Research

Language: English

Topic: Cancer and Skin Lesions

Subfield: Dermatology

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: diamond

OpenAlex ID: W4410917426

FWCI:

Cites: 8

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Related to: 10