title: Acquired localised hypertrichosis in a Chinese child after cast immobilisation.
abstract: Hypertrichosis refers to excessive hair growth that is independent of any androgen effect. Hypertrichosis could be congenital or acquired, localised or generalised. The phenomenon of acquired localised hypertrichosis following cast application for a fracture is well known to orthopaedic surgeons, but is rarely encountered by primary care physicians. We describe a 28-month-old Chinese boy who had fracture of right leg as a result of an injury. He had a cast applied by an orthopaedic surgeon as treatment. On removal of the cast 6 weeks later, he was noticed to have significant hair growth on his right leg compared with the left leg. The patient was reassessed 3 months after removal of the cast. The hypertrichosis resolved completely with time. This patient was one of the youngest among the reported cases of acquired localised hypertrichosis after cast application. We illustrate the significance of management of post-cast-acquired localised hypertrichosis in the primary care setting.
authors.affiliation: Department of Family Medicine and Primary Health Care, Kowloon East Cluster, Hospital Authority, Hong Kong.
authors.forename: M W
authors.initials: MW
authors.lastname: Yuen
authors.affiliation: Department of Family Medicine and Primary Health Care, Kowloon East Cluster, Hospital Authority, Hong Kong.
authors.forename: Loretta K P
authors.initials: LK
authors.lastname: Lai
authors.affiliation: Department of Family Medicine and Primary Health Care, Kowloon East Cluster, Hospital Authority, Hong Kong.
authors.forename: P F
authors.initials: PF
authors.lastname: Chan
authors.affiliation: Department of Family Medicine and Primary Health Care, Kowloon East Cluster, Hospital Authority, Hong Kong.
authors.forename: David V K
authors.initials: DV
authors.lastname: Chao
mesh_terms: D044466:Asian People; D002370:Casts, Surgical / Q000009:adverse effects*; D002675:Child, Preschool; D050723:Fractures, Bone / Q000601:surgery; D006801:Humans; D006983:Hypertrichosis / Q000209:etiology* / Q000473:pathology; D007869:Leg Injuries / Q000601:surgery; D008297:Male; D011320:Primary Health Care
keywords: Casts, surgical/adverse effects; Hypertrichosis