Spontaneous Regression Of Conjunctival Keratoacanthoma

An 83-year-old white man presented with a rapidly growing conjunctival mass in his left eye over the course of 1month. While awaiting surgical intervention, the tumour underwent partial, spontaneous regression to half its original size. The lesion was ultimately excised with wide margins using a no-touch technique and application of cryotherapy to the corneal and conjunctival margins and scleral bed. Histopathological analysis revealed a conjunctival keratoacanthoma. To our knowledge, this is the first case documenting the partial, spontaneous regression of a conjunctival keratoacanthoma over a 5week time course from the time of diagnosis to surgical excision.