The family of an Egyptian-Canadian journalist imprisoned in Cairo says he has finally been taken to a hospital for a badly injured shoulder after the country's interim president assured them he would receive proper medical treatment.

Mideast Egypt

Mohamed Fahmy, left, producer Baher Mohamed, second left, and correspondent Peter Greste, centre, stand inside a defendants' cage in a courtroom during their trial on March 5. (Mohammed Abu Zaid/Associated Press)

But Mohamed Fahmy's brother says the president's office did not address what the family says is a "ridiculous" set of terrorism charges brought against the 40-year-old and his co-workers.

Fahmy has now been in custody for nearly three months after he and two colleagues were arrested on Dec. 29 while working for satellite news broadcaster Al-Jazeera English.

His brother says Fahmy was taken to a hospital this weekend for an MRI on a shoulder he fractured before his arrest, which has grown worse in prison.

Adel Fahmy says while the hospital visit was a positive development, his brother is anxious for his case to be expedited as weeks in prison take their toll.

Mohamed Fahmy's trial resumes in a Cairo court on Monday.

In a letter to Fahmy's family, Egypt's interim president, Adli Mansour, says he trusts Fahmy will receive "all his rights that the law has insured for him."

Mansour added he has told the interior minister to follow up on Fahmy's medical condition.

With files from CBC News