The pediatrician who examined a young foster child who later died of a brain injury testified at the Lily Choy second-degree murder trial Tuesday.

Choy, a foster mother, is accused of killing the three-year-old boy in January 2007.

This is the second time Choy has been on trial in connection with the death. She was convicted of manslaughter in 2008 but the decision was overturned by the Court of Appeal.

Dr. Kan Lee took the stand Tuesday and described his examination of the youngster. He told court he saw several bruises on the boy's body, including on his forehead, legs, arms and lower back.

Dr. Lee told court that Lily Choy told him the marks on the boy's body may have come from a visit to his biological father. The doctor also testified that Choy told him the boy would wake up screaming and he would have tantrums in which he would say, "Daddy hurt me, daddy pulling ears."

Dr. Lee also testified he did not see aggressive behaviour in the child.

"He was very quiet, very little emotion shown," said Dr. Lee. "At times he would raise his arms at Lily Choy. Lily Choy told me he wanted a hug, a cuddle."

Dr. Lee also told court Choy was cooperative.

On Monday, court heard that on Jan. 26, 2007 Choy placed a call to 911 in which she said the boy, who cannot be named, had no movement in his eyes and was wheezing deeply.

The child was taken to the Stollery Children's Hospital, where efforts to control swelling in his brain were unsuccessful. The boy died on Jan. 27, 2007.

The circumstances surrounding the brain injury will be at the centre of the debate between the Crown and the defence.

With files from CTV's Serena Mah.