Josef Martinec went to Tomáš Baťa Hospital in Zlin with unbearable back pain – but thought it was because he had put on weight.
Scans revealed he actually had a 27kg malignant tumour in his abdomen – although details of what type of cancer he was suffering from have not been reported.
Medics said he needed surgery immediately – despite the fact this would be risky as his health was poor. The six-hour operation to remove the tumour was successful, although he lost a lot of blood.
Mr Martinec spent six months undergoing cancer treatment. Doctors said that the prognosis is very unclear due to the character of the growing tumour.