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Syndrome reference sheet
Generated 13 Oct 2026
Endocrinology · Endocrinology / Pediatric endocrinology

Pallister–Hall syndrome

Also known as: PHS

Hypothalamic hamartoma with polydactyly and imperforate anus.

Medical specialty
Endocrinology
Subspecialty
Endocrinology / Pediatric endocrinology
Sex & age distribution
Male: affected; Female: affected equally; Children: yes, birth
Gene(s) involved
GLI3

Etiology & mechanism

GLI3 truncating variants.

Gene(s) involved (1)

GLI3

Symptoms & signs (7)

central polydactylyepiglottis cleftgelastic seizureshypopituitarismhypothalamic hamartomaimperforate anuslaryngeal cleft
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