Korean J Dermatol.
2002 Apr;40(4):442-444.
A Case of Malignant Eccrine Poroma
- Affiliations
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- 1Department of Dermatology, College of Medicine, Hallym University, Seoul, Korea. kimyji@hanmail.net
Abstract
- Malignant eccrine poroma is a rare malignant cutaneous tumor arising from intraepithelial eccrine duct and it may develop either spontaneously or from a long standing eccrine poroma. We report a case of malignant eccrine poroma on the antihelix of the right ear in a 37-year-old female, previously diagnosed as a benign eccrine poroma with shave biopsy specimens. Histological findings are well-defined tumor cell nests disseminated in dermis. Each cell has a large, hyperchromatic atypical nuclus. The atypical mitoses, dyskeratoses, intracytoplasmic vacuolations and duct-like structures are observed. She was treated with wide surgical excision and local skin flaps.
