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Small Animal Radiology and Ultrasound: A Diagnostic Atlas and Text

Small Animal Radiology and Ultrasound: A Diagnostic Atlas and Text

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Chapter Three The Abd omen 379<br />

Fig. 3-153 A 4-month-old female<br />

German Shepherd dog with urinary<br />

incontinence since owned. Survey<br />

radiographs were normal. An excretory<br />

urogram performed after pneumocystography<br />

revealed normal size<br />

<strong>and</strong> shape of the kidneys. The renal<br />

sinuses were elongated <strong>and</strong> the<br />

diverticula were not outlined, which<br />

resulted in an appearance of the<br />

renal pelvis similar to a scimitar. The<br />

pseudopapillae are markedly blunted<br />

(white arrow). The proximal ureters<br />

are dilated (open black arrow).<br />

Diagnosis: Chronic pyelonephritis<br />

(the dog also had bilateral ectopic<br />

ureters).<br />

Fig. 3-154 A 6-year-old male domestic short-haired cat with<br />

anorexia for 5 days, vomiting for 3 days, <strong>and</strong> pyrexia. Survey<br />

radiographs revealed a slight enlargement of the left kidney. The<br />

excretory urogram on the 15-minute ventrodorsal view revealed<br />

a normal right kidney. The left kidney shows a persistent<br />

nephrogram image with a relatively radiolucent pelvis <strong>and</strong> faint<br />

traces of normal-sized diverticula. Differential diagnoses<br />

include pyonephrosis or unilateral obstructive nephropathy.<br />

Diagnosis: Pyonephrosis.

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