Dermoscopic findings in frontal fibrosing alopecia: report of four cases

Shigeki Inui, Takeshi Nakajima, Fumie Shono, Satoshi Itami
International Journal of Dermatology 2008, 47 (8): 796-9

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.

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