Normal and abnormal ultrasonographic findings that mimic small intestinal intussusception in the dog.
On ultrasonographic examination of the abdomen, the appearance of healthy intestine, enteritis secondary to an intestinal foreign body, and postpartum involution of the uterus may be visualized in some imaging planes as a target-like structure that is subsequently misinterpreted as intestinal intussusception. To avoid misdiagnosis, the ultrasonographer should ensure multi-plane scanning of the lesion, paying particular attention to the completeness of the lesion's peripheral ring structure and the overall width of the concentric rings of the target-like lesion. The presence of a semilunar or G-shaped hyperechoic center and the visualization of the inner intussusceptum (extending into the intussusception lumen) can be useful ultrasonographic findings that distinguish an intussusception from other lesions or from healthy tissues. These principles are illustrated through the following case presentations.
Patsikas
Michail N
MN
Department of Clinical Sciences, School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece.
Papazoglou
Lysimachos G
LG
Papaioannou
Nickolaos G
NG
Dessiris
Aggelos K
AK
D000818:Animals; D003937:Diagnosis, Differential; D004283:Dog Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging*; D004285:Dogs; D005260:Female; D005547:Foreign Bodies / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000662:veterinary*; D007421:Intestine, Small / Q000000981:diagnostic imaging*; D007443:Intussusception / Q000000981:diagnostic imaging / Q000662:veterinary*; D008297:Male; D011860:Radiography, Abdominal / Q000662:veterinary; D014463:Ultrasonography; D014591:Uterine Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000662:veterinary*