Contributor: Jesse Vislisel, MD
While previously considered benign lesions, keratoacanthomas are now believed by many to be low grade squamous cell carcinomas. These lesions typically exhibit a rapid growth pattern and sometimes involute spontaneously. This lesion arose over a period of weeks. Note the classic dome-shaped nodule with elevated, rolled margins and a central keratin-filled crater. Note, the darkened coloration of the upper lid is a permanent eyeliner tattoo.
1. Ko CJ. Keratoacanthoma: facts and controversies. Clin Dermatol. 2010;28(3):254-61
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