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Syndrome reference sheet
Generated 12 Oct 2026
Neurology · Neurology / Movement disorders; Pediatric neurology Benign hereditary chorea
Also known as: BHC; brain-lung-thyroid syndrome
Early-onset nonprogressive chorea with thyroid and lung involvement.
- Medical specialty
- Neurology
- Subspecialty
- Neurology / Movement disorders; Pediatric neurology
- Sex & age distribution
- Male: affected; Female: affected equally; Children: yes, onset in early childhood
- Gene(s) involved
- ADCY5, NKX2-1, PDE10A
Etiology & mechanism
NKX2-1 loss of function.
Gene(s) involved (3)
ADCY5NKX2-1PDE10A
Symptoms & signs (4)
childhood choreahypothyroidismhypotoniarespiratory problems