A bereaved sister has paid tribute to her "strong, smiling” brother who died aged 15 after being diagnosed with an aggressive brain tumour with a zero percent survival rate.

Abi Doe, 20, of Diss, said she was grateful she was able to make “so many precious memories” before her younger sibling, Callum, passed away two years ago.

Callum was diagnosed with grade four diffuse midline glioma on Christmas Eve 2018, aged 13.

Eastern Daily Press: Callum Doe was diagnosed with a brain tumour before he died in August 2020Callum Doe was diagnosed with a brain tumour before he died in August 2020 (Image: Archant)

Despite an operation to remove as much of it as safely possible, as well as two rounds of radiotherapy, he died in August 2020.

Miss Doe, a former pupil of Diss High School, works as a learning support assistant at Archbishop Sancroft High School, near Harleston.

She said: “Callum was incredibly brave and strong and always had a smile on his face. I’ll always look up to him for that.”

Eastern Daily Press: Sister and brother, Abi and Callum Doe pictured smiling togetherSister and brother, Abi and Callum Doe pictured smiling together (Image: Doe family)

Their parents, Ian and Michelle Doe, have raised thousands of pounds for East Anglia's Children's Hospices (EACH) following the charity’s support.

And Miss Doe recently followed in their footsteps by braving a head shave on July 19 – Callum's 17th birthday.

She added: “We made so many precious memories that wouldn’t have been possible without the kindness and support of EACH.”