Diagnosis: Cornu cutaneum
Description: Cutaneous horn.
Morphology: Digitate
Site: Chest
Sex: M
Age: 66
Type: Clinical
Submitted By: Nameer Al-Sudany
Differential Diagnosis
History:
A solitary horny digitate projection arose from an erythematous base on the upper part of the chest of six months duration. Biopsy of the lesion showed actinic keratosis at the base of the horn.