Trichorrhexis Nodosa: report of a case and Scanning Electron Microscopic Findings / 대한피부과학회지

ABSTRACT

Trichorrhexis nodosa is a distinctive response of the hair shaft to physical or chemical trauma, characterized by the development of node-like swelling, through which the shaft readily fractures. We have described here a case of trichorrhexis nodosa with scanning electron microscopic findings. Nodular swelling of the affected hair showed longitudinal fissures and fractures in the cortex with loss of cuticular scales. At the site of fracture, a paintbrush-like effect was seen.