fibroid degeneration

fibroid degeneration or fibrous degeneration

n.

A form of degeneration in which fibrous tissue forms or replaces other tissues.

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degeneration

deterioration; change from a higher to a lower form, especially change of tissue to a lower or less functionally active form. When there is chemical change of the tissue itself it is true degeneration; when the change consists in the deposit of abnormal matter in the tissues, it is infiltration. See also wallerian degeneration, Zenker's necrosis.

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albuminoid degeneration

cloudy swelling, an early stage of degenerative change characterized by swollen, parboiled-appearing tissues which revert to normal when the cause is removed.

ballooning degeneration

swelling of the cytoplasm in epidermal cells without vacuolization, enlarged or condensed nuclei and acantholysis. A characteristic of viral infections of the skin. Called also koilocytosis.

caseous degeneration

caseation (2).

colloid degeneration

degeneration with conversion of the tissues into a gelatinous or gumlike material.

cystic degeneration

degeneration with formation of cysts.

fatty degeneration

deposit of fat globules in a tissue.

feathery degeneration

said of hepatocytes; a hydropic change in hepatocytes which have suffered long-term exposure to cholestasis.

fibrinoid degeneration

deposition or replacement with eosinophilic fibrillar or granular substance resembling fibrin.

fibroid degeneration

degeneration into fibrous tissue.

hyaline degeneration

a regressive change in cells in which the cytoplasm takes on a homogeneous, glassy appearance; also used loosely to describe the histological appearance of tissues. Called also hyalinosis.

hydropic degeneration

see hydropic degeneration.

macular degeneration

degenerative changes in the macula retinae.

mucoid degeneration

degeneration with increased mucin which can be epithelial or mesenchymal in origin.

mucous degeneration

degeneration with accumulation of mucus in epithelial tissues. Called also myxomatous degeneration.

myxomatous degeneration

see mucous degeneration (above).

reticular degeneration

extreme intracellular edema of epidermal cells, resulting in rupture and multilocular intraepidermal vesicles with septae formed by the remaining cell walls. Seen in acute inflammatory dermatoses.

spongy degeneration

on microscopic examination has the physical appearance of a sponge. Usually applied to tissue of the central nervous system, caused by the loss of myelin.