Trichonodosis: A Case Report and Literature Review.

ABSTRACT:

Introduction

Hair shaft disorders include congenital or acquired conditions characterized by structural abnormalities of the hair. Trichonodosis, or knotted hair, is a rare disorder characterized by the presence of knots along the hair shaft. It can occur spontaneously or be induced by mechanical forces.

Case presentation

An 8-year-old girl presented with short, fine, curly hair since birth. Physical examination revealed diffusely curly scalp hair with visible breakage. Trichoscopy and light microscopy showed knotted hair segments, cortical fractures, and variation in hair shaft thickness. A diagnosis of spontaneous trichonodosis was made. Treatment with topical minoxidil and gentle hair care led to improved hair length and strength over 2 years.

Conclusion

We propose

SUBMITTER: Chantanakul P 

PROVIDER: S-EPMC12503706 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature