A miracle baby born with a deadly tumour the size of a rugby ball has paid an adorable tribute to his NHS hero 10 years on.Jamie Haazen was born nine weeks premature in January 2010 with a 2lb cancerous tumour attached to his spine, bowel and bladder.At two days old he had to go under the knife in a nine-hour operation to remove the life-threatening tumour and spent six weeks in intensive care at Yorkhill Children’s Hospital.After facing further reconstructive surgeries, scans and regular hospital check-ups, the 10-year-old Maxwellton Primary pupil is now fighting fit.As part of a home schooling exercise during the COVID-19 lockdown, the Calderwood youngster painted a rainbow of hope and wrote about his NHS hero, Dr Gregor Walker, who he