On some occasions, the contrast fills the lumen in between the intussuscipiens
and the intussusceptum.
It was characterized by marked edema and congestion in the serosa of the intestine without necrosis or fibrin in both: in both: intussusceptum portion and intussuscipiens
Oral contrast may be seen within the central lumen of the intussusceptum or between the outermost wall of the intussuscipiens
and the invaginated bowel.
Intussusception was reduced by manipulation and gentle traction of intussusceptum and pressure on intussuscipiens
The specimen consisted of a small intestinal segment with the intussusceptum telescoping into the intussuscipiens
These ring shadows represent contrast reflux within the lumen between the walls of the intussusceptum and intussuscipiens
, the ileocecal region, also showed necrosis.
B) Longitudinal US of the mass shows sandwich-like appearance of the intussuscipiens
(White arrow in A&B) and the intussusceptum with mesentry (star-shaped marker in A&B).
It appears as a complex soft-tissue mass, consisting of the outer intussuscipiens
and the central intussusceptum.
The outer hypoechoic layer represents the intussuscipiens
, and the hypoechoic inner layer represents the intussusceptum.
The typically crescentic fatrepresents the mesentery drawn into the intussuscipiens
, and the soft tissue is a combination of bowel, lymph nodes, and mesenteric vasculature.
In both the small bowel and colon, an intussusception causing incomplete obstruction is found as contrast material trapped between the intussusceptum and intussuscipiens
creating a "coiled-spring" appearance.