Dermoscopic findings in frontal fibrosing alopecia: report of four cases

Authors


  • Conflict of interest

    None declared.


Shigeki Inui, MD
Department of Regenerative Dermatology
Osaka University School of Medicine 2-2
G2, Yamadaoka
Suita-shi
Osaka 5650871
Japan
E-mail: inui@r-derma.med.osaka-u.ac.jp

Abstract

Background  Frontal fibrosing alopecia (FFA) is characterized by frontotemporal hair recession and eyebrow loss and by a histopathology identical to lichen planopilaris. Differential diagnosis from other types of alopecia, including alopecia areata (AA), is necessary in some cases.

Objective  To describe dermoscopic findings of FFA and to investigate the possibility of utilizing dermoscopy as a diagnostic tool for FFA.

Methods  Four cases of FFA diagnosed by clinical and/or histological findings were examined by dermoscopy.

Results  The loss of orifices, perifollicular erythema or scale was seen in all the four cases (4/4), in three cases (3/4) or in two cases (2/4), respectively. None of the cases showed yellow dots characteristic of AA. Immunohistochemistry showed T lymphocyte infiltration into the infundibulum and isthmus.

Conclusion  Dermoscopy is a helpful diagnostic tool for FFA especially to distinguish it from AA.

Ancillary