A Case of Malignant Eccrine Poroma.
- Author:
Doo Yeoul JUNG
;
Ju Han BAE
;
Sook Kyung LEE
;
Won Woo LEE
- Publication Type:Case Report
- Keywords:
Malignant eccrine poroma;
Porocarcinoma
- MeSH:
Aged;
Buttocks;
Dermis;
Eccrine Porocarcinoma*;
Epidermis;
Female;
Follow-Up Studies;
Humans;
Poroma;
Recurrence;
Sweat;
Ulcer
- From:Korean Journal of Dermatology
1999;37(5):660-664
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Malignant eccrine poroma, or eccrine porocarcinoma, is a rare malignant cutaneous appendageal tumor arising from the intraepidermal eccrine sweat duct(acrosyringium), and usually develops ia an eccrine poroma of long-standing. We report a case of malignant eccrine poroma on the left buttock in a 72 year-old female. She was presented with a slightly pruritic, well-defined, reddish, firm, 4.5 x 4.5 x 0.7cm sized, protruding, ulcerated tumor. Histopathological examination revealed well-defined tumor cell nests in the epidermis and dermis. The tumor nests consisted of areas of eccrine poroma cells with benign appearance adjoining areas of anaplastic cells. Duct-like structures were observed within the tumor nests and showed a PAS-positive, diastase-resistant reaction. On immunohistochemical staining, the tumor cells were, positive for EMA, and most of tumor cells were negative but the duct-like structures were positive for CEA. She was treated with surgical excision. During the three year follow up period after excision, there was no recurrence.
