Toronto mayor Rob Ford will undergo 40 days of chemotherapy to treat a rare and difficult-to-beat cancer that forced him to do what months of scandals over drug and alcohol abuse could not — drop his bid for re-election.

Toronto Mayor Rob Ford’s doctor says the politician has cancer.

The tumour in Rob Ford’s abdomen, the discovery of which led the mayor of Toronto to drop out of the election last week, is both malignant and rare, medical authorities said.