Frontal fibrosing alopecia after antiandrogen hormonal therapy in a male patient

Abstract

An 82-year-old man with a prostate adenocarcinoma, started eight years before a treatment with oral bicalutamide 50 mg daily and subcutaneous goserelin 10,8 mg each three months, an antiandrogen and a LHRH analogue, respectively. The rest of his past medical history was unremarkable. A few months after starting with the treatment, he began with recession of the frontotemporal hairline also with hypopigmentation and atrophy of the areas of alopecia and loss of axillary and pubic hair (Figure 1). He did not present any clinical signs or patterns of male androgenetic alopecia. He denied having any siblings or kindreds with a scarring alopecia and therefore a familial FFA was excluded. Laboratory test showed low levels of prostate specific antigen (0,024ɥg/L) and undetectable free serum testosterone levels (<0,1 nmol/L). A biopsy on the scalp revealed a lichenoid lymphocitic inflammatory infiltrate, important fibrosis with loss of elastic fibers and hair follicle destruction (Figure 2,3). The clinical and histopathological features were consistent with frontal fibrosing alopecia. He is still having this treatment in order to prevent the progression of the prostate adenocarcinoma.

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