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November 1956

Eccrine Poroma: Tumors Exhibiting Features of the Epidermal Sweat Duct Unit

Author Affiliations

Monroe, Mich.; Detroit, Mich.; Detroit, Mich.

From the Departments of Dermatology, Wayne University College of Medicine and Detroit Receiving Hospital (Drs. Pinkus and Rogin), and the Department of Dermatology, Sinai Hospital of Detroit (Drs. Rogin, Goldman, and Pinkus).

AMA Arch Derm. 1956;74(5):511-521. doi:10.1001/archderm.1956.01550110055013

Adnexal tumors of the skin not infrequently show structural differentiation resembling one or several components of the pilary complex, which comprises hair, sebaceous gland, and apocrine gland. Structure related to eccrine sweat glands is less commonly encountered. It occurs in adenomas or adenocarcinomas resembling the coil (spirema) or duct (syrinx) of the gland. This paper deals with five tumors thought to be related to the eccrine sweat pore inasmuch as they have histologic features of the intraepidermal part of the sweat duct. As they also present certain clinical similarities, it was considered justifiable to report them as a group.

Evidence concerning the intraepidermal portion of the eccrine duct was presented in 1939 by one of us (Pinkus1) to the effect that the duct has its own wall up to the very surface and constitutes a morphologic and biologic entity which plays a role

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