Toronto Mayor Rob Ford has an abdominal tumor, discovered after he was admitted to a hospital on Wednesday.

Ford entered Humber River Hospital’s Church Street facility in Toronto earlier in the day, complaining of abdominal pains, a problem that had plagued the politician for the last three months but had suddenly become “unbearable,” his brother, City Councillor Doug Ford said.

By Wednesday evening, doctors had given Ford a “working diagnosis of a tumor.”

Councillor Ford said he could not comment on how the diagnosis will impact Mayor Ford’s campaign for reelection. Rob Ford is running for mayor despite having been in rehab earlier this year for problems with alcohol and drugs including crack-cocaine.

President and CEO of Humber River Hospital Dr. Rueben Devlin said during a press conference Wednesday that physicians won’t be able to determine exactly what type of tumor Ford has until they complete a biopsy. The full investigation into his condition is likely to wrap up by the end of the week, Devlin said.

A CT scan found that “it wasn’t a small tumor,” Devlin said. “But size is not as relevant as what it is.” The biopsy will determine if there are tumors anywhere else in Ford’s body.

Doug Ford said Wednesday that despite the diagnosis, his brother is in “good spirits.” Councillor Ford also asked for privacy until they know what the tumor is.

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