Abstract
Radiation-induced cutaneous side effects are well known; however, the isoradiotopic phenomenon presenting as lichen planus is underreported in the literature. It is imperative to be aware of this entity to manage the patients accordingly. Herein, we report a 31-year-old male, a known case of carcinoma glottis who developed lichen planus confined to the radiation site and presented with a review of literature on isoradiotopic lichen planus.