Rapid enlargement of pilomatricoma.
D000208:Acute Disease; D000328:Adult; D000368:Aged; D005260:Female; D006258:Head and Neck Neoplasms / Q000473:pathology; D006406:Hematoma / Q000473:pathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D012878:Skin Neoplasms / Q000473:pathology*