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Pathology Definitions


ANTIBODIES: A molecule that has a specific amino acid sequence which interacts only with the antigen that it was synthesized against.

AUTOPSY: The act of having a postmortem examination of a body performed, including the internal organs and structures after dissection, so as to determine the cause of death or the nature of pathological changes.

BACTERIA: Plural of bacterium. BACTERIUM: in general, any of the single-celled prokaryotic microorganisms that commonly multiply by cell division (fission) and whose cell is typically contained within a cell wall.

BENIGN: Not dangerous to health; not recurrent or progressive. Usually used to describe the growth of neoplasm (see below).

CELL: Any one of the minute protoplasmic masses that make up organized tissue, consisting of a nucleus which is surrounded by cytoplasm which contains the various organelles and is enclosed in the cell or plasma membrane.

DIAGNOSIS: The determination of the nature of a case or disease / the art of distinguishing one disease from another.

INFECTION: Invasion and multiplication of microorganisms in body tissues, which may be clinically inapparent or result in local cellular injury due to competitive metabolism, toxins, intracellular replication, or antigen-antibody response.

MALIGNANT: Having the ability to progressively grow and spread. Usually refers to neoplasms (see below).

MARROW: The blood forming tissue within the Medulary Cavity.

NEOPLASM: A new growth of tissue that is uncontrolled and can be either benign or malignant.

ORGANISM: Any individual living thing, whether animal or plant. Cellular organism - an organism made up of a cell or cells.

PATHOLOGY: The study of the essential nature of diseases and especially of the structural and functional changes produced by them.

PATHOLOGIST: Is an M.D. who specializes in the of diseases by examining biopsies, cytologies, laboratory tests, and acts as a consult to your physician.

TISSUE: An aggregation of similarly specialized cells united in the performance of a particular function.

TUMOR: 1. Swelling, one of the cardinal signs of inflammation; morbid enlargement. 2. A new growth of tissue in which the multiplication of cells is uncontrolled and progressive.