David Jiménez-Gallo et al.
Journal of cutaneous pathology, 40(9), 818-822 (2013-06-28)
Lichen planus follicularis tumidus (LPFT) represents an uncommon variety of lichen planus (LP). Clinically, it presents with prominent purplish lesions or white-pigmented yellowish cysts and comedones. Histopathologically, it is similar to lichen planopilaris, and it is additionally characterized by follicles