intestinal rotation

in·tes·ti·nal ro·ta·tion

rotation of the primitive intestinal loop around an axis formed by the superior mesenteric artery.
See: malrotation.
References in periodicals archive ?
Incomplete intestinal rotation and fixation is denominated malrotation and usually has a congenital etiology.
1) After a sequence of events that occur between five and twelve weeks, the midgut, which is primarily involved in intestinal rotation around the axis of the SMA, settles in a normally orientated position: the duodenum crossing the midline and lying to the left and posterior of the SMA, with the caecum and ascending colon in the right abdominal gutter.
Anomalies of intestinal rotation and fixation: consequences of late diagnosis beyond two years of age.
Disorders of intestinal rotation and fixation ("malrotation").
In the absence of either of these abnormalities, there is the possibility of incomplete intestinal rotation, whereby at the end of embryonic intestinal development, the right colonic mesentery is incompletely fixed to the retroperitoneal structures.
DISCUSSION: These hernias are the result of alterations in the normal process of intestinal rotation during embryonic development.
Predisposition to torsion results from deficient cecal peritoneal fixation secondary to incomplete intestinal rotation (1) associated with an aggravating factor.
Anomalies of intestinal rotation in childhood: analysis of 447 cases.

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