Korean J Dermatol.
2001 Sep;39(9):991-994.
A Case of Poroma with Features of Hidroacanthoma Simplex, Eccrine Poroma, and Dermal Duct Tumor
- Affiliations
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- 1Department of Dermatology, Hanyang University College of Medicine, Seoul, Korea.
- 2Department of Pathology, Hanyang University College of Medicine, Seoul, Korea.
Abstract
- Hidroacanthoma simplex, eccrine poroma, and dermal duct tumor have all been reported as distinct neoplasms of eccrine sweat duct origin. However, these tumors have recently come to be viewed as variants of benign poroid neoplasia owing to their similar histopathologic and cytologic features. Some cases of two or three subtypes of poroid neoplasm coexisting in a single lesion have been reported in foreign countries. We report herein a 61-year-old female who visited our outpatient department due to an erythematous pedunculated mass on the left thigh. Histopathologic findings showed both poroid and cuticular cells, intercellular or intracytoplasmic ducts, and monomorphism of the nuclei of poroid and cuticular cells in all three neoplasms. This is the first case of a poroma composed of three histologically distinct lesions in a single lesion in Korea.
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