Malignant transformation of eccrine tumors
- 1 February 1987
- journal article
- Published by Wiley in Journal of Cutaneous Pathology
- Vol. 14 (1), 15-22
- https://doi.org/10.1111/j.1600-0560.1987.tb00122.x
Abstract
Malignant transformation occurred in pre-existing sweat gland tumors in 7 patients. Three lesions showed an histologic pattern of eccrine spiradenoma, 2 eccrine poroma, one cylindroma and one papillary eccrine adenoma. Malignant transformation was histologically characterized by the presence of solid tumor areas populated with large cells having irregularly shaped nuclei and mitotic figures. There were multiple foci of squamous metaplasia, areas of loss of basement membrane and invasion of the surrounding connective tissue.Keywords
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