SAEVA Congress 2018 Proceedings | 12-15 February 2018 | ATKV Goudini Spa
Jejunojejunal intussusception
Asymptomatic intussusceptions have been seen in normal neonatal foals but are
present without thickening of the affected intestine or distention of the oral segment.
Strangulating small intestinal lesions
Distended, fluid-filled small intestine is usually imaged proximal to a strangulated
portion of small intestine. The strangulated small intestine usually has thickened,
edematous, hypoechoic walls with little or no peristaltic activity. Complete volvulus of
the small intestine may also occur, similarly affecting the entire small intestine.
Distended small intestine with thickened walls is most frequently detected in the ventral
portion of the abdomen.
Meconium/ Ascarid impaction
Meconium impactions can appear as hypoechoic, echoic or hyperechoic masses in the
lumen of the large colon, small colon or rectum. If the meconium is obstructing the flow
of ingesta, the small colon proximal to the obstruction will be fluid distended.
Large meconium impaction in small colon
In older foals, Ascarid impactions can be imaged in the bowel lumen, usually in the
ileum. The Ascarid worm appear as a long echogenic tubular structure in the lumen of
the bowel or as an irregular mass of echoic tubular structures.
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