pneumatosis


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pneumatosis

 [noo″mah-to´sis]
air or gas in an abnormal location in the body.
pneumatosis cystoi´des intestina´lis a condition characterized by the presence of thin-walled, gas-containing cysts in the wall of the intestines. Called also intestinal emphysema.

pneu·ma·to·sis

(nū'mă-tō'sis),
Abnormal accumulation of gas in any tissue or part of the body.
[G. a blowing out]

pneumatosis

/pneu·ma·to·sis/ (-to´sis) [Gr.] air or gas in an abnormal location in the body.
pneumatosis cystoi´des intestina´lis  presence of thin-walled, gas-containing cysts in the wall of the intestines.

pneu·ma·to·sis

(nū'mă-tō'sis)
Abnormal accumulation of gas in any tissue or part of the body.
[G. a blowing out]

pneumatosis

air or gas in an abnormal location in the body.

pneumatosis coli
gas or air dissecting the tissues in the wall of the large intestine.
pneumatosis cystoides intestinalis
a condition characterized by the presence of thin-walled, gas-containing cysts in the wall of the intestines in humans, a condition similar to intestinal emphysema in pigs.
References in periodicals archive ?
The term pneumatosis is used to reflect the presence of gas in an abnormal location in the body.
In this particular case, the CT scan suggested gastric necrosis due to pneumatosis of the stomach wall and concern for a duodenal internal hernia.
31,32) In more advanced cases, in which ischemia has progressed to infarction, pneumatosis and portal venous gas may be seen.
Pneumatosis Intestinalis is defined as the infiltration of gas into the bowel wall.
Pneumatosis intestinalis is defined by the collection of gas in the intestinal wall and the formation of clear cystic spaces lined by histiocytes and giant cells in the submucosa (Figure 15), along with pseudolipomatosis (small, airfilled, clear, cystic spaces of the lamina propria, often in the proximity of lymphoid nodules), disarray of crypts, and eosinophilia.
Pneumatosis suggests transmural ischemia or infarction.
On CT, the axial twist volvulus demonstrates a U-shaped, distended bowel segment and signs of ischemia (antimesenteric border), including mural thickening, infiltration of the mesenteric fat, and pneumatosis intestinalis.
The definite signs of NEC include pneumatosis intestinalis and portal venous gas, which are revealed by x-rays.
Associated findings include a double halo of edema and hemorrhage in the bowel wall, pneumatosis, or portal venous system air (Figure 15).
A computed tomography (CT) scan revealed complete small bowel obstruction with a transition point in the distal ileum, associated pneumatosis intestinalis of the ileum, and emphysematous gastritis with air at the gastroesophageal junction and in the portal vein (Figures 1 and 2).