Bone Scan: A technique to create images of bones on a computer screen or on film. A small amount of radioactive material is injected into a blood vessel and travels through the bloodstream; it collects in the bones and is detected by a scanner.

CT Scan: Coaxial tomographic scan is an advanced scanning device.

Lymph Node: Round, oval or bean-shaped aggregation of infection-and cancer-fighting immune cells located along the lymph channels throughout the body.

Preterm: Delivered/born before 37 completed weeks since the last normal menstrual period of a pregnancy.