Small Animal Radiology and Ultrasound: A Diagnostic Atlas and Text

Chapter Two The Thorax 227
Fig. 2-211 A and B, A 5-year-old cat
with acute respiratory distress. On
two ventrodorsal thoracic radiographs
there is a decrease in density
within the right lung lobes. The pulmonary
arteries and veins in the left
lung lobes are evident (arrows). The
right caudal lung lobe artery is small
and the pulmonary vein is not identified.
The radiographic findings are
indicative of oligemia of the right
lung lobes with hyperinflation.
Diagnosis: Thrombosis of the pulmonary
artery in the right caudal
lung lobe. The diagnosis was confirmed
by a selective arteriogram.
The etiology was not determined.
A
B
Fig. 2-212 An 11-year-old male Pit
Bull with weakness and muffled
heart sounds. On a close-up photograph
of the lateral thoracic radiograph
there are areas of bronchial
calcification evident. These are common
findings in an older dog. There
were no thoracic abnormalities.
Diagnosis: Bronchial calcification.
but must be differentiated from other active granulomas and neoplasms. The density of the
nodules combined with their small, usually uniform size and distinct margins identifies
them as pulmonary or pleural osteomas rather than neoplasms (Fig. 2-213).
Fungal granulomas, parasitic granulomas, primary and rarely metastatic neoplasms,
and abscesses may become partially or completely calcified. 584 Tracheobronchial lymph