Scandal-plagued Toronto Mayor Rob Ford

Toronto Mayor Rob Ford holds back his emotions while speaking during an invite-only press conference at City Hall in Toronto after his stay in a rehabilitation facility, on Monday June 30, 2014. Ford returned to work Monday after a two-month stay a facility in Ontario. He was in rehab for alcohol addiction after announcing in April that he was seeking treatment. (AP Photo/The Canadian Press, Darren Calabrese)

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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, according to medical authorities.

Dr. Zane Cohen of Mount Sinai Hospital's surgical team addressed the media today to provide an update on Ford's medical condition, which, he noted, was done due to great public interest.

He said a repeat biopsy was done Monday on "the mass," meaning the abdominal tumour.

"The diagnosis is a malignant liposarcoma," said Cohen, which is a form of cancer that arises in fat cells in deep soft tissue; it is, Cohen said, a rare and difficult tumour to treat. (Yahoo News)

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