mucoid degeneration

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degeneration

 [de-gen″ĕ-ra´shun]
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. adj., adj degen´erative.
caseous degeneration caseation (def. 2).
cerebromacular degeneration (cerebroretinal degeneration)
1. degeneration of brain cells and of the macula retinae, as occurs in tay-sachs disease.
2. any lipidosis with cerebral lesions and degeneration of the retinal macula.
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.
fibroid degeneration degeneration of a leiomyoma with subsequent fibrosis.
hepatolenticular degeneration Wilson's disease.
hyaline degeneration a regressive change in cells in which the cytoplasm takes on a homogeneous, glassy appearance; also used loosely to describe the histologic appearance of tissues.
hydropic degeneration a form in which the epithelial cells absorb much water.
lattice degeneration of retina a frequently bilateral, usually benign asymptomatic condition, characterized by patches of fine gray or white lines that intersect at irregular intervals in the peripheral retina, usually associated with numerous, round, punched-out areas of retinal thinning or retinal holes.
macular degeneration see macular degeneration.
macular degeneration, congenital see stargardt's disease.
macular degeneration, Stargardt's stargardt's disease.
mucoid degeneration degeneration with deposit of myelin and lecithin in the cells.
mucous degeneration degeneration with accumulation of mucus in epithelial tissues.
myofibrillar degeneration damage to selective cardiac cells when surrounding interstitial cells, nerves, and capillaries remain viable.
myxomatous degeneration mucous degeneration.
spongy degeneration of central nervous system (spongy degeneration of white matter) Canavan disease.
subacute combined degeneration of spinal cord degeneration of both the posterior and lateral columns of the spinal cord, producing various motor and sensory disturbances; it is due to vitamin B12 deficiency and is usually associated with pernicious anemia. Called also Lichtheim's or Putnam-Dana syndrome.
wallerian degeneration fatty degeneration of a nerve fiber that has been severed from its nutritive source.
Zenker's degeneration Zenker's necrosis.

mu·coid de·gen·er·a·tion

a conversion of any of the connective tissues into a gelatinous or mucoid substance.

myxomatous degeneration

A nonspecific term for connective tissue changes that occur in various sites (e.g., the mitral valve) where there is disruption of the stroma due to an accumulation of occidian sulfate, a glycosaminoglycan.

mu·coid de·gen·er·a·tion

(myū'koyd dĕ-jen'ĕr-ā'shŭn)
A conversion of any of the connective tissues into a gelatinous or mucoid substance.
Synonym(s): myxomatosis (1) .
References in periodicals archive ?
Bursal slide showing myxoid degeneration with focal chondroid metaplasia (right).
From a histopathological point of view, ganglion cysts are lined by fibrous tissue having arisen from myxoid degeneration of connective tissue from joint capsule [3].
The reported cases of valvular involvement where histopathology of the valves was available demonstrated either histopathology typical of GPA or myxoid degeneration that was most likely due to previously active vasculitis.
Microscopic examination of the partially excised pulmonary valve showed fresh bleeding and myxoid degeneration areas (Fig.
(1) Intestinal fibrosarcoma with myxoid degeneration is seen in pet birds (2) but has not been described in the cloaca.
The lesion in out patient was an example of a noninfiltrating angiolipoma, based on its encapsulation and characteristic microscopic findings, including a fibrotic stroma with myxoid degeneration and lobulated cellular areas characterized by patchy capillary vascularization and fibroblastic activity.
Valve pathology were of myxoid degeneration (2 cases of MVP) and of rheumatic nature (3 cases affecting both mitral and aortic valves) excluding the single case of infective endocarditis of mitral valve which was neither rheumatic nor myxoid degeneration.
Myxoid degeneration of tendons occurs with aging or from chronic overuse.
Areas of necrosis, myxoid degeneration, and focal calcification were observed.
Myxoid degeneration is a rare complication of benign fibroid, where presence of cystic changes mimics the metastatic malignant ovarian tumour.
A differential diagnosis was given for this lesion, which included myxoma, myxoid lipoma, myxoid degeneration in a pleomorphic adenoma, or another mesenchymal process.
MRI is useful in preoperative diagnosis of myxoid degeneration of anterior cruciate ligament (ACL) if careful attention to clinical details and MR imaging findings of the celery stalk sign is kept in mind.