Small Animal Radiology and Ultrasound: A Diagnostic Atlas and Text

386 Small Animal Radiolo g y and Ultrasono graphy
Fig. 3-164 Longitudinal sonograms of the left kidney of a
12-year-old castrated male Cocker Spaniel with a history of
vomiting and bloody diarrhea of 1 month duration. There
was a palpable abdominal mass. The left kidney has been
replaced by an anechoic mass that contains hyperechoic linear
septations. This is indicative of severe hydronephrosis.
Diagnosis: Hydronephrosis.
Fig. 3-165 Longitudinal (A and B)
and transverse (C and D) sonograms
of the left kidney of a 9-year-old
spayed female Schnauzer with a history
of chronic urinary tract infection
and diabetes mellitus. There is a
solitary anechoic lesion in the renal
cortex (arrows) indicative of a renal
cyst. The kidneys are diffusely hyperechoic
with poor corticomedullary
distinction. This is indicative of diffuse
renal disease that may be secondary
to chronic infection or
infiltrative disease. Diagnosis:
Solitary renal cyst, chronic
pyelonephritis.
A
B
C
D