Sebaceoma associated with seborrheic keratosis

Vol. 58 No. 2, 2017


Angel Fernandez-Flores, Jose Antonio Manjon

Sebaceoma associated with seborrheic keratosis has only been described once in the literature. Herein, we present an additional case in a 69-year-old woman who complained of a multicolored plaque on the left breast. Dermatoscopy showed a central orange lesion with orange globules suggestive of dilated glands. The periphery of the lesion was brown and gray, with some more pigmented zones. The histopathological study demonstrated a seborrheic keratosis in the peripheral areas, whereas the central part of the lesion was a sebaceoma. We performed an immunohistochemical study with antibodies against MSH6, MSH2, MLH1, and PMS2, which demonstrated preserved nuclear expression of the mismatch repair proteins, therefore ruling out Muir-Torre syndrome.

Corresponding author: Angel Fernandez-Flores, MD, PhD; e-mail:

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