Last Updated: 2023-07-07
Author(s): Anzengruber F., Navarini A.
Comèl-Netherton syndrome, bamboo hair, bamboo hairs
Trichorrhexis invaginata is characterised by typical invaginations of the hair shaft. The cause is a keratinisation defect.
Trichorrhexis invaginata is a symptom of Comèl-Netherton syndrome (ichthyosis linearis circumflexa Comèl, atopic diathesis, trichorrhexis invaginata).
There is autosomal recessive inheritance.
The „invagination“ or invagination occurs due to increased growth of the outer hair shaft/ outer root sheath (keratinisation disorder).
Dry, dull, brittle hair, most of which never exceeds 4 cm in length.
Trichogram: typical invaginations
↑ argininosuccinic acid in urine
Sometimes improvement in the course of life.
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