" /> Trigger thumb - CISMeF





Preferred Label : Trigger thumb;

Type : Other, mainly phenotypes with suspected mendelian basis;

Description : Pediatric trigger thumb is caused by a mismatch between the flexor pollicis longus tendon and its sheath. Patients present with a hard, palpable nodule (Notta's node) at the base of the metacarpal and an inability to extend the thumb beyond 30 degrees, which can rarely be accompanied by triggering, snapping, or a digit locked in extension (summary by Wang et al. (2012)).;

Inheritance : Autosomal dominant;

Prefixed ID : 190410;

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28/07/2025


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