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Ginecología y obstetricia de México

Print version ISSN 0300-9041


NARVAEZ-SALAZAR, Marta et al. A lichen planus subtype papulo-squamous or classic: Vulvar and extragenital presence. Ginecol. obstet. Méx. [online]. 2020, vol.88, n.9, pp.632-637.  Epub Oct 04, 2021. ISSN 0300-9041.


Vulvar lichen planus is a subtype of dermatological pathology that is presented as erosive, papulo-erythematous, or hypertrophic lesions on the vulva. This lesion could appear in isolation or with concomitant extragenital involvement.


A 41-year-old patient with no previous history of interest, who attended due to the onset of itchy skin lesions of two months of evolution. At medical examination, multiple erythematous squamous, violaceous, hyperkeratotic papules were observed, with Koebner phenomenon and a tendency to cluster at the forearms and wrists, dorsum of the feet and trunk. The same lesions were seen in inguinal folds, vulvar and perianal region. We also notice an asymptomatic non-itchy 3 mm papule with violet edge in left labia majora (it had a whitish reticulate on the surface called Wickham's striae) and other erosive papules 11 mm and 3 mm respectively, with violet edge. No vaginal or other mucosal lesions were seen. Diagnosis of vulvar papule-squamous lichen planus was established which coexists with a cutaneous hypertrophic form. Given the self-limited nature of this pathology, a wait-and-see approach and symptomatic treatment of pruritus with oral antihistamines was adopted. Six weeks later, disappearance of the cutaneous lesion without cicatricial areas was observed.


It is essential to carry out an anamnesis and gynecological examination in dermatological preocedures, especially when mucosas are involvement to avoid under-diagnosis. The biopsy of the lesions will be useful when there are doubts in the diagnosis, and it is essential in isolated hypertrophic vulvar lesions.

Keywords : Vulvar lichen planus; Papule squamous lichen planus; Itchy; Skin lesions; Koebner phenomenon; Biopsy; Wickham’s striae; Dermatoses.

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