a rapidly evolving tumor of the skin with a "volcano-like" appearance Skin Care Guide
a rapidly expanding nodule that develops a central, keratotic core (see photo below)
a skin growth that is round, firm and usually flesh-colored with a scaly crater at the center
A rapidly-growing, locally-invasive tumor of the skin which usually resolves spontaneously if not removed for diagnostic or cosmetic purposes.
A round, rapidly growing tumor that appears mainly on sun-exposed skin.
mostly benign, rapidly growing skin tumor that regresses spontaneously
A benign endophytic epithelial growth appearing as a wee circumscribed keratin-filled crateronsun-exposed skin; ofen mistaken for squamous cell carcinoma.
A benign (noncancerous), rapidly growing skin tumor that usually occurs on sun-exposed areas of the skin and that can go away without treatment.
Keratoacanthoma Keratoacanthoma (KA) is a relatively common, benign, epithelial tumor that was previously considered to be a variant of squamous cell carcinoma. The etiology is unknown. No human papillomavirus-DNA sequences were detected in lesions by polymerase chain reaction.