Paediatric (or pediatric) radiology is a subspecialty of diagnostic radiology focused on children, from infants through to adolescents and young adults. Adolescents and young adults are referred to paediatric radiologists because their developing bodies are more susceptible to the adverse effects of radiation than are adults of equivalent size.

Body Imaging is a subspecialty of radiology focusing on the characterization and diagnosis of abnormalities of the chest abdomen and pelvis using various imaging modalities.

Radiation Oncology ( also known as Radiotherapy) is the branch of medicine that uses ionizing radiation, either in combination with other treatment modalities or alone, for the treatment of patients with benign or malignant diseases.