Small Animal Radiology and Ultrasound: A Diagnostic Atlas and Text

454 Small Animal Radiolo g y and Ultrasono graphy
Fig. 3-273 Transverse sonograms of
the spleen of a 7-year-old male Old
English Sheepdog with a history of
vomiting and icterus. There are multiple
poorly marginated hypoechoic
lesions within the spleen (arrows).
These may represent abscesses,
infarcts or tumors. Diagnosis:
Splenic infarcts.
Fig. 3-274 A 10-year-old male
Dachshund with polyuria and polydipsia
for 2 weeks. The lateral radiograph
revealed a large spleen (black
s), enlarged mesenteric lymph nodes
(black m), and enlarged sublumbar
lymph nodes (white *). A needleshaped
foreign body is noted in the
stomach. Diagnosis: Lymphoma.
Fig. 3-275 Longitudinal (A to C)
and transverse (D) sonograms of the
midabdomen of a 1-year-old castrated
male cat with a history of
anorexia, hepatomegaly, and a palpable
abdominal mass. There are multiple
hypoechoic irregularly shaped
abdominal masses. The hyperechoic
area along the margin of the mass
represents mesenteric fat. These
masses represent enlarged abdominal
lymph nodes. Diagnosis:
Lymphoma.
A
B
C
D