dry gangrene

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dry gan·grene

a form of gangrene in which the involved part is dry, sharply demarcated, and shriveled; usually due to slowly occlusive vascular disease.
Synonym(s): cold gangrene, mummification (1)

dry gangrene

n.
Gangrene that is characterized by shriveling of the tissues in the absence of bacterial infection, usually caused by obstruction of arterial blood supply to the affected area.

dry gangrene

See gangrene.

dry gangrene

A condition caused by chronic vascular occlusion that slowly progresses to severe tissue atrophy and mummification, often associated with peripheral vascular disease–eg, DM, ASHD. See Gangrene.

dry gan·grene

(drī gang'grēn)
A form of gangrene in which the afflicted part is dry and shriveled.
Synonym(s): mummification (1) .

dry gangrene

GANGRENE developing as a result of loss of blood supply from arterial obstruction in which infection has not occurred. The tissues shrivel, mummify and the gangrenous extremity may drop off.

dry gan·grene

(drī gang'grēn)
A form of gangrene in which the involved part is dry and shriveled.
Synonym(s): mummification (1) .

gangrene

the death of body tissue, generally in considerable mass, usually associated with loss of vascular (nutritive) supply, and followed by bacterial invasion and putrefaction. Although it usually affects the extremities, gangrene sometimes may involve the internal organs. Signs depend on the site and include fever, pain, darkening of the skin, and an unpleasant odor. If the condition involves an internal organ, it is generally attended by pain and collapse.

dry gangrene
occurs gradually and results from slow reduction of the blood flow in the arteries. There is no subsequent bacterial decomposition; the tissues become dry and shriveled. It occurs only in the extremities, and usually because of gradual diminution of the blood supply. Signs include gradual shrinking of the tissue, which becomes cold and lacking in pulse, and turns first brown and then black. Usually a line of demarcation is formed where the gangrene stops, owing to the fact that the tissue above this line continues to receive an adequate supply of blood.
gas gangrene
results from dirty lacerated wounds infected by anaerobic bacteria, especially species of Clostridium. It is an acute, severe, painful condition in which muscles and subcutaneous tissues become filled with gas and a serosanguineous exudate.
internal gangrene
in strangulated hernia, a loop of intestine is caught in the bulge and its blood supply is cut off; gangrene may occur in that section of tissue. Thrombosis of the mesenteric artery may result in gangrene of a section of intestine. Gangrene can be a rare complication of lung abscess in pneumonia.
moist gangrene
caused by sudden stoppage of blood, resulting from burning by heat or acid, severe freezing, physical accident that destroys the tissue, a tourniquet that has been left on too long, or a clot or another embolism. At first, tissue affected by moist gangrene has the color of a bad bruise, smells atrociously, is swollen, and often blistered. The gangrene is likely to spread with great speed. Toxins are formed in the affected tissues and absorbed.
segmental gangrene
gangrene of a section of an organ, e.g. of part of an elephant's ear, as a result of sectional compromising of blood supply.