Medical Must-See: A facial horn 10 years in the making

The nonagenarian said the slow-growing lesion had developed over a decade
Staff writer
(A) The 8cm-long cutaneous horn; (B) histopathology shows atypical keratinocytes and horn pearls within the dermis, with hyperchromatic and pleomorphic nuclei

You might think a horn-like growth on the face would be call for urgent action, but an elderly man in China waited 10 years before presenting to doctors with his unusual lesion.

The solid 8cm growth from his cheek was described as a “grey-brown, firm, keratotic cutaneous horn”.