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  • Title: Leonine facies (LF) and mycosis fungoides (MF): A single-center study and systematic review of the literature.
    Author: Brown DN, Wieser I, Wang C, Dabaja BS, Duvic M.
    Journal: J Am Acad Dermatol; 2015 Dec; 73(6):976-86. PubMed ID: 26476898.
    Abstract:
    BACKGROUND: Leonine facies (LF) is defined as displaying facial features similar to that of a lion with prominent convexities and furrowed creases. LF develops in a very small population of patients with cutaneous T-cell lymphoma. OBJECTIVE: We aimed to study the clinicopathologic features and overall prognosis associated with LF in patients with mycosis fungoides and Sézary syndrome. METHODS: We conducted a single-center retrospective study, reviewing 1338 patients with mycosis fungoides seen from 1987 to 2015 at a tertiary referral center for cutaneous T-cell lymphoma, and a systematic review of 14 patients in the literature. RESULTS: We identified 10 patients with mycosis fungoides who developed LF. Folliculotropism was seen in all patients with LF who had facial biopsy specimens. Radiation was a beneficial therapy. Complete remission was achieved in 1 patient and overall 5-year survival was 26%. Systematic review of 10 additional patients showed that all patients with LF, including ours, had stage-IV disease and some degree of blood involvement, but not all met criteria for Sézary syndrome. LIMITATIONS: This was a retrospective study with a small sample size. CONCLUSION: LF is associated with stage-IV cutaneous T-cell lymphoma, is often accompanied by folliculotropism and blood involvement, and can be treated with local electron beam therapy.
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