of the large distended, gas-filled structures were emphysematous pyometra, gastric distension-volvulus (GDV), or severe mechanicalileus. The smaller gas-filled structure was most likely a part of the emphysematous pyometra or mechanicalileus
vertebral body. 1 Mechanicalileus is usually distinguished from functional ileus on the basis of the presence of a segmental pattern of ileus. With mechanicalileus, the small intestine is typically dilated proximal to an obstruction, with the distal
adhesions. A mechanicalileus was suspected secondary to the mass.
The same radiographic images as in Figure 1 . A large soft tissue mass (arrows) with a superimposed irregular gas opacity (asterisk) is evident. Notice the gas dilated
bladder or intestine). This may be better delineated by performing a radiographic positive-contrast study. 2 Mechanicalileus secondary to small intestinal herniation and incarceration or entrapment often is identified by segmental small intestinal
Adenocarcinoma is often solitary, as opposed to lymphoma, which can be focal, multifocal, or diffuse. 4 Mechanicalileus commonly occurs with intestinal carcinoma due to stenosis of the lumen and does not occur as often with lymphoma. 4 Despite these potential
disorders) or mechanicalileus (eg, esophageal foreign body, mass, or stricture, or vascular ring anomaly). The prevalence of diverticula is low in people (range, 0.06% to 4% 6 ) and presumed to be low in dogs 2 , 5 , 7 – 12 and cats, 13 – 18 given the
, 31 whereas a dilated cecum could be palpated in 87.9% (405/461) of cows with cecal dilatation, torsion, or retroflexion. 27 In cattle with small intestinal dilatation, the differential diagnosis must include all other types of mechanicalileus and