circular folds of small intestine

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Related to valvulae conniventes: plicae

cir·cu·lar folds of small intestine

[TA]
the numerous folds of the mucous membrane of the small intestine, running transversely for about two thirds of the circumference of the gut.

cir·cu·lar folds of small in·tes·tine

(sĭr'kyū-lăr fōldz smawl in-tes'tin) [TA]
The numerous folds of the mucous membrane of the small intestine, running transversely for about two thirds of the circumference of the gut.
Synonym(s): plicae circulares intestini tenuis [TA] , Kerckring folds, Kerckring valves.
References in periodicals archive ?
Ultrasound has been used to detect the large fluid-filled C-loop between the SMA and aorta, with the presence of valvulae conniventes helpful in distinguishing these loops from acute pancreatic fluid collections, as pancreatitis often enters the differential diagnosis because of the pain and elevated amylase.
The 'keyboard sign' produced by the valvulae conniventes is further supportive evidence.
This sign is seen on plain films or MDCT images and represents adjacent, thickened folds with sharp demarcation and crowding of the valvulae conniventes (Figure 11).