Cellular Pathology: Cellular pathology, also known as anatomical (or anatomic) pathology is the branch of pathology that involves the study of body organs and tissues (groups of cells). Cellular pathology is considered one of the diagnostic branches of medicine, along with radiology and other pathology specialties (e.g. microbiology, haematology, blood transfusion and biochemistry). Its roles include determining the cause of certain diseases and the effect(s) that they are having on the body, assisting with the choice of treatment that will be given, aiding in giving a prognosis and determining what may have caused a person's death.