keratoacanthoma
/ˌkɛrətoʊˌækənˈθoʊmə/
noun
- A common, fast-growing skin growth that looks like a small dome with a central crater filled with keratin; it is usually benign and may go away on its own.
- Keratoacanthomas can be mistaken for squamous cell carcinoma, so a biopsy is often done.
- She noticed a keratoacanthoma on her hand that grew quickly over a few weeks.
- The dermatologist said the bump on his arm was a keratoacanthoma and would likely heal without treatment.