Pathological anatomy is the science that studies the pathophysiological and morphological alterations of the disease. Study the disease at the organic, tissue, cellular, subcellular, and molecular level. It's divided in:
General Pathological Anatomy: Study principles common to groups of diseases, which allow the development of a doctrine of more or less universal validity.
Special Pathological Anatomy or Surgical Pathology: Study the pathophysiological and morphological bases of each particular disease.
The main objective of pathological anatomy is not only to study the evolution and causes of a disease, but also to make a prognosis of the effects that different diseases can have on human beings. To do this, tumor cells and body tissues are analyzed.
Thus, within pathological and cytodiagnostic studies, two types of tests are differentiated: pathological and diagnostic. In the first of them, a tissue sample of any organ is analyzed with the intention of identifying the type of cell and what treatments would be useful to combat the alteration.