Page 250 - Feline diagnostic imaging

254 14 Feline Pulmonary Disease

(b)

(a)

Figure 14.1 Lateral (a) and VD (b) views of the thorax of a normal cat. The pulmonary parenchyma is composed of alveoli, interstitial
tissue, bronchial walls, and pulmonary vessels. The bronchi and interstitial tissue provide a small part of normal background opacity.
The pulmonary vessels create most of normal background opacity in a normal thoracic radiograph.

(b)

(a)

Figure 14.2 Left lateral (a) and VD (b) images of the thorax of a 2-year-old cat presented for chronic upper respiratory infection,
fever, and lethargy. A marked alveolar pattern is present in the ventral aspect of the right cranial lung lobe. Border effacement of the
right cranial margin of the heart is noted, along with a lobar sign along the caudal aspect of the alveolar pattern (arrow).
Bronchopneumonia secondary to the upper respiratory infection was diagnosed.