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Telogen effluvium. New concepts and review
1Department of Pathology, University of Michigan Medical School, Ann Arbor 48109-0602.
Archives of Dermatology
|March 1, 1993
Summary
This study proposes five new mechanisms for telogen effluvium, a condition causing increased hair shedding due to hair cycle disruption. These findings offer a novel framework for understanding and diagnosing various causes of telogen effluvium.
Area of Science:
- Dermatology
- Trichology
- Hair Biology
Background:
- Telogen effluvium involves increased shedding of club hairs resulting from hair cycle disruption.
- While various causes exist, distinct underlying mechanisms are not fully elucidated.
Purpose of the Study:
- To propose novel, diverse mechanisms for telogen effluvium.
- To categorize telogen effluvium based on hair cycle phase alterations.
Main Methods:
- Classification of telogen effluvium into five functional types based on follicular cycle phase changes.
- Review of diverse causes, with a focus on drug-induced telogen effluvium.
Main Results:
- Introduction of five distinct functional types: immediate anagen release, delayed anagen release, short anagen syndrome, immediate telogen release, and delayed telogen release.
- Confirmation of diverse etiologies contributing to telogen effluvium.
- Review of drug-related telogen effluvium.
Conclusions:
- The proposed five mechanisms for telogen effluvium are supported by clinical observations.
- This classification provides a new framework for understanding hair shedding disorders.