Netherton's syndrome, a rare congenital ectodermal defect, was characterized by erythematous and scaly skin at birth, progressing to serpiginous scaling on the trunk and extremities, along with lichinified dermatitis and short brittle scalp hair. The diagnostic feature, tricorrhexis invaginata or "bamboo hair defect," was identified in the vellus hair of a 7-year-old boy's scalp, which was initially mistaken for an artifact due to its rarity in literature. This case highlighted the importance of recognizing this hair defect for diagnosing Netherton's syndrome.
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October 1958 in “Archives of Dermatology” The document reports a unique case of a 4-year-old girl with a congenital ectodermal defect leading to a rare type of hair fragility known as trichorrhexis nodosa, described as "bamboo hairs." The condition resulted in her scalp hair failing to grow to normal length, although there was no baldness. The case, first examined in 1949, has garnered interest among dermatologists due to its rarity, despite the challenge of limited prolonged observation as the patient lived in a distant city.
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January 2017 in “Indian Dermatology Online Journal” Body hair transplants can treat baldness but differ from scalp hair and need more research on long-term results and side effects.
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December 2014 in “Clinical and Experimental Dermatology” Hair density and thickness decrease in all scalp areas for East Asians with AGA.
The woman has unexplained hair loss and it's unclear what her condition is or how to treat it.
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May 2002 in “Skin Research and Technology” CE-PTG detects early hair follicle issues in balding areas, helping measure male hair loss.
January 2001 in “대한피부과학회지” Horizontal sectioning helps diagnose hair loss, but Korean follicle differences matter.
