This week’s case is a 15-year-old Pembroke Welsh Corgi with recent intermittent episodes of dyspnea. What pattern is present, and what are your differential diagnoses?
On radiographs of the thorax, there is a diffuse mixed interstitial to alveolar pattern throughout the lungs. with a bronchial component. The opacity outlines the airways and partially obscures the cardiac silhouette on the dorsoventral projection. The cardiac silhouette is more visible on the ventrodorsal projection and appears normal.