PMC9684633_01
Thoracic radiographs, 3 projections (left lateral, right lateral, and dorsoventral). A severe alveolar lung pattern is present in the perihilar region and caudodorsal lungs, mainly distributed on the right side. There is a moderate diffusely distributed broncho-interstitial lung pattern in the left cranial and right cranial and right middle lung lobes. The cranial pulmonary vessels are very small and there is a narrowing of the caudal vena cava. The aorta cannot be identified due to superimposition. Trachea, cardiac silhouette, and diaphragm appear within normal limits.
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Thoracic radiographs revealed a severe alveolar lung pattern largely limited to the perihilar and caudodorsal lung fields, worse on the right than the left (Figure 1) along with microcardia, narrowed cranial pulmonary vessels and caudal vena cava suggesting ongoing hypovolemia.