pathology (pa-thol´o-je)

The medical science, and specialty practice, concerned with all aspects of disease, but with special reference to the essential nature, causes, and development of abnormal conditions, as well as the structural and functional changes that result from the disease processes. [patho- + G. logos, study, treatise]
anatomical p. the subspecialty of p. that pertains to the gross and microscopic study of organs and tissues removed for biopsy or during postmortem examination, and also the interpretation of the results of such study.pathological anatomy;
cellular p. 1. the interpretation of diseases in terms of cellular alterations, i.e., the ways in which cells fail to maintain homeostasis; 2. sometimes used as a synonym for cytopathology (1).
clinical p. 1. any part of the medical practice of p. as it pertains to the care of patients; 2. the subspecialty in p. concerned with the theoretical and technical aspects (i.e., the methods or procedures) of chemistry, immunohematology, microbiology, parasitology, immunology, hematology, and other fields as they pertain to the diagnosis of disease and the care of patients, as well as to the prevention of disease.
comparative p. the p. of diseases of animals, especially in relation to human p.
dental p. oral p
functional p. p. pertaining to abnormalities in function of a tissue, organ, or part, with or without associated changes in structure.
humoral p. the thesis that disorders in the fluids of the body, especially the blood, are the basic factors in disease.
medical p. p. pertaining to various diseases not suitable for treatment by surgery.
molecular p. the study of biochemical and biophysical cellular mechanisms as the basic factors in disease.
oral p. the branch of dentistry concerned with the etiology, pathogenesis, and clinical, gross, and microscopic aspects of oral and paraoral disease, including oral soft tissues, the teeth, jaws, and salivary p;
speech p. the science concerned with functional and organic speech defects and disorders.
surgical p. a field in anatomical p. concerned with examination of tissues removed from living patients for the purpose of diagnosis of disease and guidance in the care of patients.


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