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Acquired localized hypertrichosis induced by internal fixation and plaster cast application.
Hui-Jun Ma1, Yang Yang, Hui-Yong Ma
1Department of Dermatology, Plastic Surgery and Burn Repair Center, the 309th Hospital of Chinese PLA, Beijing, China.
Annals of Dermatology
|September 5, 2013
Summary
Acquired localized hypertrichosis (ALH) is excessive hair growth from irritation. This case report details ALH in a young boy, specifically around surgical fixation sites after a fracture.
Area of Science:
- Dermatology
- Orthopedics
Background:
- Hypertrichosis is characterized by increased vellus hair growth, distinct from androgen excess.
- Acquired localized hypertrichosis (ALH) typically arises from chronic irritation, inflammation, friction, or occlusion, often associated with materials like plaster of Paris.
Observation:
- A case of ALH is presented in a young boy affecting his right hand.
- The hypertrichosis was localized to the operative region following a closed fracture treatment involving internal fixation and a plaster cast.
Findings:
- The localized hair growth was unusually confined to the area of internal fixation.
- This suggests a potential link between local vascular changes and skin inflammation induced by the surgical procedure and cast.
Implications:
- The findings suggest that internal fixation and plaster cast application could be contributing factors to ALH in specific localized areas.
- Further research may elucidate the precise mechanisms linking orthopedic interventions to localized hypertrichosis.
