RT Journal Article T1 Squamous cell carcinoma in lichen planopilaris. A1 Garrido Colmenero, Cristina A1 Martín Castro, Aurelio A1 Valenzuela Salas, Ignacio A1 Martínez García, Eliseo A1 Blasco Morente, Gonzalo A1 Tercedor Sánchez, Jesús K1 lichen planopilaris K1 squamous cell carcinoma K1 cicatricial alopecia K1 Liquen Plano AB BACKGROUNDLichen planopilaris (LPP) is a rare variant of cutaneous lichen planus that preferentially involves hair follicles.OBSERVATIONWe describe the case of an 87-year-old woman with cicatricial alopecia due to lichen planopilaris. The diagnosis was based on clinical evaluation, histopathology and trichoscopy. Squamous cell carcinoma developed within the hairless area after 18 years of evolution.CONCLUSIONIt is necessary to consider the association between lichen planopilaris and squamous cell carcinoma and to ensure a close follow-up of LPP patients, especially when there is a long history of the disease or new a lesion develops, which does not correspond clinically or in trichoscopy to lichen planopilaris. PB Spejaliści Dermatolodzy YR 2013 FD 2013-09-30 LK http://hdl.handle.net/10668/1370 UL http://hdl.handle.net/10668/1370 LA en NO Garrido Colmenero C, Martín Castro A, Valenzuela Salas I, Martínez García E, Blasco Morente G, Tercedor Sánchez J. Squamous cell carcinoma in lichen planopilaris. J Dermatol Case Rep; 7(3):84-7 NO Journal Article; DS RISalud RD Apr 20, 2025