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Application of Ultraviolet-Induced Fluorescence Trichoscopy (UVFT) in Hair and Scalp Diseases.
Dermatol Ther (Heidelb)
January 2025
Department of Dermatology, Institute of Medical Sciences, Medical College of Rzeszow University, Rzeszow, Poland.
Introduction: Ultraviolet-induced fluorescence dermoscopy (UVFD) is increasingly utilized in dermatooncology and general dermatology. The objective of the study was to characterize the ultraviolet-induced fluorescence trichoscopy (UVFT) findings in a wide range of hair and scalp conditions.
Methods: Consecutive patients with non-scarring alopecias (alopecia areata, AA, n = 40; androgenetic alopecia, AGA, n = 40), scarring alopecias (frontal fibrosing alopecia, FFA, n = 20; lichen planopilaris, LPP, n = 20; folliculitis decalvans, FD, n = 14; discoid lupus erythematosus, DLE, n = 23), and inflammatory scalp conditions (psoriasis, n = 30; seborrheic dermatitis, n = 14) were included.
Dissecting cellulitis mimicking kerion in a 9-year-old boy.
JAAD Case Rep
December 2024
Department of Dermatology, University of Connecticut School of Medicine, Farmington, Connecticut.
Differential diagnosis of posterior scalp hair loss.
Arch Dermatol Res
November 2024
Department of Dermatology, Wake Forest University School of Medicine, Winston-Salem, NC, USA.
Compound Follicles in Folliculitis Decalvans Do Not Contain Vellus and Retained Telogen Follicles-A Pilot Histopathologic Series on Polytrichia.
J Cutan Pathol
January 2025
Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA.
Article Synopsis
- - Polytrichia is a common observation in folliculitis decalvans (FD), linked to compound follicular structures (CFS) that involve multiple hair follicles sharing a single opening and surrounded by fibrous tissue.
- - A study analyzed 10 scalp biopsy samples from patients with early-stage FD, focusing on the types and quantities of follicles within these CFS.
- - The findings revealed that of 205 follicles examined, 156 were terminal follicles, primarily in the anagen phase, providing insights into the pathology of FD.
Evidence of IL-17-secreting mast cells in scalp lesions of folliculitis decalvans points to new therapeutic targets in recalcitrant lesions.
Clin Exp Dermatol
October 2024
Department of Dermatology, Hospital das Clínicas, University of São Paulo Medical School, São Paulo, Brazil.
Article Synopsis
- Folliculitis decalvans (FD) is a chronic hair loss condition with an unclear cause, but recent research indicates a link to IL-17 secretion by mast cells.
- A study found higher levels of IL-17 and mast cells in affected areas of the scalp compared to unaffected areas, suggesting an inflammatory response.
- The results indicate that targeting IL-17 and mast cells may help manage the chronic inflammation associated with severe cases of FD.
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