Gv of Warren Farm Primary School i Birmingham where five year old Leah Gillon was told by staff her attendance had been too low, despite the fact she had missed classes due to her undergoing treatment for a brain tumour. October 26 2015. See NTI story NTITUMOUR; The parents of a five-year-old girl have slammed their daughter’s school after they were warned her “unauthorised absences” would not be tolerated – even though she has a BRAIN TUMOUR. Brave Leah Gillon – known as Lilly – was diagnosed with an incurable ependymoma (corr.) brain tumour four years ago. She has undergone two major operations and pioneering proton radiation therapy in the United States to remove the growth. But the youngster requires frequent hospital appointments and the tumour could return at any time. Last year she attended 67 per cent of her classes at Warren Primary School in Kingstanding, Birmingham.