🧬 SyndromeScope
Syndrome reference sheet
Generated 13 Oct 2026
Pediatrics · Pediatrics / Neonatology Twin-to-twin transfusion syndrome
Also known as: TTTS
Unbalanced placental vascular anastomoses in monochorionic twins.
- Medical specialty
- Pediatrics
- Subspecialty
- Pediatrics / Neonatology
- Sex & age distribution
- Male: affected; Female: affected; Children: yes, fetal
- Gene(s) involved
- None recorded
Etiology & mechanism
Chronic net blood flow from donor to recipient twin.
Gene(s) involved (0)
No gene recorded.
Symptoms & signs (5)
cardiac straindiscordant sizedonor oligohydramnioshydropsrecipient polyhydramnios