Current scientific literature on a subject of foetal brain tumours, however rich, consists mainly of case reports, produced by either obstetricians – ultrasonographers or radiologists and neuropathologists. In this review, we summarize state of the art literature on that subject and we performed a meta-analysis of 92 cases from that literature and presented our own cases referred to us as to a reference centre. This centre is obstetrical and paediatric and provides a complex care for both a pregnant woman, a foetus and, eventually, a newborn with a brain tumour. We report here the main categories of the central nervous system (CNS) foetal tumours: subependymal giant cell astrocytoma (SEGA), teratomas, lipomas, medulloblastomas and germinomas. Foetal brain tumours are mainly sporadic and familial occurrences are rare. We cover prenatal diagnosis – ultrasonography and magnetic resonance imaging (MRI). Foetal brain tumours are relatively readily diagnosed by ultrasonography provided their diameter exceeded 10 mm. However, they may be difficult to detect if “covered” as in cases of unilateral ventriculomegaly or in asymmetric hydrocephalus. The medical procedures, problems of termination of pregnancy in Poland and postnatal prognosis are also described. Eventually, tumours of the CNS in pregnancy are also discussed.

prenatal central nervous system tumours, prognosis, differential diagnosis, procedure, ultrasonography