Which histologic findings are characteristic of androgenetic alopecia?

Updated: Feb 12, 2018
  • Author: Robert P Feinstein, MD; Chief Editor: Romesh Khardori, MD, PhD, FACP  more...
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Answer

In pattern alopecia, hairs are miniaturized. In evolving-pattern alopecia, the diameter of hair shafts varies. Fibrous tract remnants (so-called streamers) can be found below miniaturized follicles. Although androgenetic alopecia is considered a noninflammatory form of hair loss, at times, a superficial, perifollicular, inflammatory infiltrate is noted. A mildly increased telogen-to-anagen ratio is often observed.


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