Doctors are expected to provide an update on Toronto Mayor Rob Ford's health and whether the tumor in his abdomen is cancerous.

Ford's brother, city councilor Doug Ford, says doctors will give a news conference Wednesday at 5 p.m. local time. Ford has been hospitalized since last Wednesday with pain in his abdomen. Biopsy results were expected within a week.

The mayor withdrew his re-election bid Friday as he undergoes treatment, dramatically ending a campaign he had doggedly pursued despite a stint in rehab and calls for him to quit amid drug and alcohol scandals.

Ford spokesman Jeff Silverstein declined to comment on whether the results of the biopsy are already known to the family.

Doug Ford is running for mayor in his brother's place.