Leeds Fetal Medicine Unit Website

Sacrococcyygeal Teratoma

Definition	Tumour arising from sacral area
Incidence	1:40000 live births
Diagnosis	Ultrasound features showing mixed solid/cystic mass extending from sacrum
Gestation at diagnosis	12 weeks onwards
Known chromosomal or genetic association	Unknown
Further investigations	Consider MRI, also need frequent ultrasound monitoring during pregnancy looking for development of hydrops
Differential Diaganosis	Neural Tube Defect
Prognosis	Without hydrops good, with antenatal hydrops 50% survival
Recurrance risk	Very Low
Research Studies

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