J Vet Sci.  2012 Jun;13(2):215-217. 10.4142/jvs.2012.13.2.215.

Ultrasonographic findings of pylorogastric intussusceptions in two dogs

• Choi J
• Keh S
• Kim T
• Jang J
• Kim H
• Yoon J

• KMID: 1376199
• DOI: http://doi.org/10.4142/jvs.2012.13.2.215

Abstract

A Yorkshire terrier (case 1) and a Miniature Schnauzer (case 2) were diagnosed with pylorogastric intussusceptions (PGIs). Both cases showed acute vomiting and had previous histories of laparotomy. In case 1, the invaginated pyloric wall was thickened unevenly containing multiple hypoechoic areas and had indistinct wall layering on ultrasonography. PGI with diffuse gastric edema and necrosis was confirmed on laparotomy. The dog recovered completely after gastrectomy and a Y-U plasty. Case 2 had uniformly thickened walls of invaginated gastric pylorus with the distinct wall layering. PGI was reduced spontaneously the next day.

Keyword

dog; pylorogastric intussusceptions; reduction; surgery; ultrasonography

MeSH Terms

Animals
Dog Diseases/pathology/surgery/*ultrasonography
Dogs
Female
Intussusception/surgery/ultrasonography/*veterinary
Pylorus/*pathology/surgery

Figure

• 

  Fig. 1 Ultrasonography of a pylorogastric intussusception in case 1. (A) A mass (m), 38 × 31 mm in size, connected with the descending duodenum (d). The mass occupied the body of the stomach (s). (B) Concentric multiple rings (arrow heads) represent an intussusception. The pyloric wall (double-headed arrow and W) is thickened (7.1 mm) with indistinct layering. Short arrows are multiple hypoechoic regions in the pyloric wall. Note the edematous change of mesentery (o).

• 

  Fig. 2 Gross examination of a pylorogastric intussusception in case 1. The invaginated proximal duodenum (d), within the stomach (s).

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  Fig. 3 Ultrasonography a pylorogastric intussusception in case 2. (A) In the transverse view, a concentric, multiple ring (arrow) and edematous mesentery (o) was observed in the gastric body. (B) In longitudinal image of the ring, the invaginated pylorus showed thickened muscular layer (*) with distinct layering. The stomach (s) was dilated with fluid.

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