Association of Frontal Fibrosing Alopecia with Facial Papules and Lichen Planus Pigmentosus in a Caucasian Woman

Abstract

<b><i>Introduction:</i></b> Frontal fibrosing alopecia (FFA) is a lymphocytic primary cicatricial alopecia typically involving the frontotemporal hairline. It may be associated with the presence of facial papules (FP) that clinically appear as noninflammatory, monomorphic, white-yellowish papules. Lichen planus pigmentosus (LPPigm) is characterized by the presence of asymptomatic grayish pigmented macules, predominantly in sun-exposed and flexural areas. <b><i>Case Report:</i></b> A 58-year-old, Caucasian, phototype III woman presented with a symmetrical, band-like, frontotemporal alopecia with regression of the hairline; bilateral eyebrow loss; diffuse, symmetrical hyperpigmentation of the face; and some asymptomatic, flesh-colored, monomorphic papules on the chin. Based on clinical, dermoscopic, and histological findings, the diagnosis of FFA associated with FP and LPPigm was established. <b><i>Discussion/Conclusion:</i></b> The peculiarity of our report is represented by the triple association of FFA, FP, and LPPigm in a Caucasian skin type III woman, as it has been rarely reported. Clinicians should be aware of this association also in subjects with phototype ≤III, as its recognition may be useful for diagnostic and prognostic purposes: the observation of LPPigm of the face may suggest to check for early FFA, and in case of FFA associated with FP, a poorer FFA prognosis may likely be expected.