[Papilloma of the choroid plexus. Apropos of 11 cases].

The authors report 11 cases of choroid plexus papillomas in children operated on from 1979 until 1993. The age ranges from 2 months to 14 years old. The most frequent location occurred in the lateral ventricles (7 cases) followed by the locations in the third ventricle (3 cases) and the fourth ventricle (1 case). A complete resection was performed in all the cases. Hydrocephalus induced by the tumors was always present. An internal and permanent shunting procedure was carried out in the pre-operative period in 5 cases, in the post-operative course in 1 case. 3 cases underwent an external CSF shunting before surgery. This external CSF drainage has been taken out a few days after the surgical resection and no further permanent internal shunting was required in the long-term outcome. In 2 cases, no CSF drainage was performed either before or after surgery. Choroid plexus papillomas (CPP) require surgical management. The hypervascularisation of these tumors can give rise to important bleeding and generate surgical difficulties particularly in children under one year. The best way to remove these tumors would be to reach the arterial feeder(s) in first place, but it is not always possible. It's also difficult to forecast wether or nor the hydrocephalus will require further permanent CSF drainage, so we have chosen to carry on an external and transient CSF shunting.