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Arch Dermatol. 1969;100(1):112-114. doi:10.1001/archderm.1969.01610250118027.
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Sebaceous Nevus and Keratoacanthoma. Presented by M. B. Corbett, MD.  A 6-year-old white boy had at birth presented a patch on top of his head that did not grow hair and which seemed rougher than the rest of the scalp. At the age of 6 months a biopsy was read as sebaceous nevus. For "cosmetic reasons" the mother sought medical advice in August 1968, stating that some "bumps" had recently grown on the bald patch. A superficial nodule was 4 mm in diameter was seen on the anterior border and smaller and similar lesions were seen on other areas of the nevus. The larger lesion was excised and was reported as a keratoacanthoma.

Discussion  Dr. Leo Indiaer: The first biopsy showed mature sebaceous glands emptying directly into the epidermis, glands much larger than they should be at age 1. In the second biopsy is a tumor which involves the epidermis


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