Unusual Case of Double Primary Orbital Tumour

(1) Multiple primary malignant tumours are themselves rare in children. (2) Two primary tumours of different pathological nature occurring in the same orbit at different times are very rare. (3) New primary tumours occurring in areas treated by radiotherapy for a different type of tumour are rare. The case concerns a schoolgirl who died at the age of 10 years from a meningioma arising in the roof of the orbit 6 years after surgical removal of a tumour of the optic nerve, gliomatous (astrocytoma) in nature. The orbit was treated with deep x-ray therapy after removal of the first tumour.