Trichoscopy
Pronunciation: trik-OSS-koh-pee
A non-invasive dermoscopic examination technique applied specifically to the scalp and hair shafts for diagnostic purposes. Editors should not confuse it with general dermoscopy.
Full Definition
Trichoscopy is the application of dermoscopy—using a handheld dermatoscope or video dermatoscope—to the evaluation of scalp and hair disorders, including alopecia and hair shaft abnormalities. It allows visualisation of follicular openings, perifollicular changes, vascular patterns, and hair shaft structure without biopsy. The technique is used to differentiate conditions such as androgenetic alopecia, alopecia areata, lichen planopilaris, and tinea capitis. In editorial contexts, trichoscopy is a subspecialty term that should not be used interchangeably with dermoscopy, which refers to pigmented lesion evaluation. The term derives from the Greek 'trichos' (hair) and 'skopein' (to look).
Usage
Usage note: Distinct from general dermoscopy; use only in the context of scalp and hair evaluation.
In Context
- "Trichoscopy revealed yellow dots and broken hairs, supporting a diagnosis of tinea capitis." — Paediatric dermatology case report
- "Serial trichoscopy was performed every three months to monitor treatment response in frontal fibrosing alopecia." — Clinical research paper