This area of medicine studies the morphological basis of the disease, that is, it is based on direct observation of the organ suffering from a disease, laboratories that are dedicated to this area carry out certain research methods such as microscopic observation based on histological, histochemical, electron microscope, immunohistochemical techniques, and more recently, of molecular techniques of special application in the pathology of cancer.
This type of laboratory is characterized by the absence of direct contact with the patient, although it is undoubtedly the specialty to which all physicians who need a diagnosis to establish a treatment to the pathological symptoms presented by the patient are directed; the result of this is an anatomopathological report that is generated by integrating the information obtained through the examination of tissue or cell samples that are made in the laboratory of pathological anatomy with different procedures, with the clinical information of the patient.