anagen
/ˈanədʒ(ə)n
/noun [mass noun] Physiology
The growing phase of a hair follicle. Often contrasted with telogen.On the scalp of patients who are predisposed to the condition, androgens lead to miniaturisation, a switch from terminal to vellus or vellus-like follicles, and a reduction in the duration of anagen....
- Telogen effluvium is diffuse hair loss caused by any condition or situation that shifts the normal distribution of follicles in anagen to a telogen-predominant distribution.
- Elsewhere, cysts containing central keratinous material were associated with a peripheral basaloid epithelial proliferation showing the formation of buds mimicking abortive anagen hair follicles.
Origin
1920s: from ana- + -gen.