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Book

Poroma

Naila Ahmed jan  1 , Hasnain A. Syed  2 , Sadia Masood  3
In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan.
.
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Book

Poroma

Naila Ahmed jan et al.
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Excerpt

Poroma (poroid tumor), a benign adnexal tumor, usually originates from the terminal duct of sweat glands. Initially, Pinkus et al described poroma and its differentiation in 1956, which was initially believed to be of eccrine origin. However, further research has revealed cases of apocrine, sebaceous, and follicular differentiation.

Some authors describe this neoplasm as "acrospiroma," whereas others consider poroma as a broad group of neoplasms, including nodular hidradenomas, clear cell hidradenomas, hidroacanthoma simplex, dermal duct tumors, and hidradenoma. Poroma can exhibit potential degenerative progression. Porocarcinoma, its malignant counterpart, typically develops after several years from a preexisting poroma.

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Conflict of interest statement

Disclosure: Naila Ahmed jan declares no relevant financial relationships with ineligible companies.

Disclosure: Hasnain Syed declares no relevant financial relationships with ineligible companies.

Disclosure: Sadia Masood declares no relevant financial relationships with ineligible companies.

References

    1. Sawaya JL, Khachemoune A. Poroma: a review of eccrine, apocrine, and malignant forms. Int J Dermatol. 2014 Sep;53(9):1053-61. - PubMed
    1. GOLDMAN P, PINKUS H, ROGIN JR. Eccrine poroma; tumors exhibiting features of the epidermal sweat duct unit. AMA Arch Derm. 1956 Nov;74(5):511-21. - PubMed
    1. Harvell JD, Kerschmann RL, LeBoit PE. Eccrine or apocrine poroma? Six poromas with divergent adnexal differentiation. Am J Dermatopathol. 1996 Feb;18(1):1-9. - PubMed
    1. Chang O, Elnawawi A, Rimpel B, Asarian A, Chaudhry N. Eccrine porocarcinoma of the lower extremity: a case report and review of literature. World J Surg Oncol. 2011 Aug 22;9:94. - PMC - PubMed
    1. Puttick L, Ince P, Comaish JS. Three cases of eccrine porocarcinoma. Br J Dermatol. 1986 Jul;115(1):111-6. - PubMed

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