🧬 SyndromeScope
Syndrome reference sheet
Generated 13 Oct 2026
Endocrinology · Endocrinology / Pituitary disorders Pituitary stalk interruption syndrome
Also known as: PSIS
Thin or interrupted pituitary stalk with ectopic posterior pituitary.
- Medical specialty
- Endocrinology
- Subspecialty
- Endocrinology / Pituitary disorders
- Sex & age distribution
- Male: affected, more common; Female: affected; Children: yes, childhood
- Gene(s) involved
- CDON, GPR161, HESX1, LHX4, OTX2, PROKR2, SOX3
Etiology & mechanism
Developmental pituitary defect.
Gene(s) involved (7)
CDONGPR161HESX1LHX4OTX2PROKR2SOX3
Symptoms & signs (5)
delayed pubertygrowth hormone deficiencyhypoglycemiamidline defectsshort stature