A rare presentation of lichen planus involving bilateral retroauricular area- Lichen Planus Follicularis Tumidus; Histopathological & dermoscopic correlation

Abstract

Lichen Planus follicularis tumidus (LPFT) is an extremely uncommon variant of Lichen Planus, characterised by white to yellow Milia-like cysts and comedones on a violaceous or hyperpigmented plaque, most commonly involving the retroauricular area. Clinically, it resembles "Milia en Plaque”. It is usually asymptomatic but may have slight pruritus, which is more common in middle-aged females. Histopathologically, it has features of lichen planopilaris along with follicular cysts in the dermis surrounded by lichenoid infiltrate. We are reporting a case of Lichen Planus Follicularis Tumidus in a 26-year-old male patient encompassing bilateral retroauricular areas and its histopathological and dermoscopic correlation.