Search Result for "keratoacanthoma": 
Wordnet 3.0

NOUN (1)

1. skin tumor that grows rapidly (especially in older people) and resembles a carcinoma but does not spread; it usually disappears spontaneously, often leaving a scar; 



WordNet (r) 3.0 (2006):

keratoacanthoma
    n 1: skin tumor that grows rapidly (especially in older people)
         and resembles a carcinoma but does not spread; it usually
         disappears spontaneously, often leaving a scar