Choroid plexus tumours in children. Review of 24 cases.

24 cases of choroid plexus tumours (16 papillomas and 8 carcinomas) were observed in the Department of Paediatric Neurosurgery, Hôpital des Enfants de la Timone, Marseille France between 1975 and 1989. The case records were reviewed and the clinical, surgical, and pathological results are presented here. 14 (58%) were infants and 10 (42%) of these were aged less than 1 year at presentation. In 11 (46%) the tumour arose in the lateral ventricle, in 7 (29%) it was located in the IIId ventricle, and in 6 (25%) the tumour was found in the IVth ventricle. 5 of the 8 carcinomas had their origin in the IVth ventricle. 17 cases (75%) required ventriculo-peritoneal shunt procedures before surgery of the tumour and in all these it was left in place post-operatively. One child required shunting de novo after removal of the tumour. A total excision was achieved in 20 children (83%) out of 23 operated upon. The operative mortality (mortality within one month of surgery) was 8%, the overall mortality was 25%. One child with a IIId ventricle papilloma died before surgery from a large gastro-intestinal haemorrhage. 5 children under the age of 3 years with carcinomas on the IVth ventricle died. The 3 children with supratentorial carcinomas are alive respectively 2 months, 8 years, and 13 years after treatment. Among 15 children with papillomas alive, 10 (67%) are neurologically intact and 5 (33%) have sequelae.