[The association of 2 histologically different neuroepithelial tumors]. / Association de deux tumeurs neuro-épithéliales histologiquement différentes.

ABSTRACT

The association of two primary brain tumours is seen in phacomatoses. Tumours may also be induced by radiotherapy or a primary tumour may be associated with a secondary tumour. The presence of two histologically different primary neuro-epithelial tumours in a subject with no particular medical history appears to be very rare with a undefinable frequency.