Presentation
Presented for an acute onset of respiratory distress.
Patient Data
The cardiac silhouette is enlarged, and has a "boot" shape on the lateral projection, and a valentine shape on the d/v projection. The pulmonary vasculature is distended, and some of the vessels are visible as nodular opacities on the d/v projection as they are projected end-on. There is an interstitial to alveolar pattern in patchy regions throughout the lungs. The lungs are hyperinflated.
Case Discussion
Hypertrophic cardiomyopathy with pulmonary edema.
The cat developed muscular tremors that prevented an echocardiogram from being performed. The presumptive diagnosis was hypertrophic cardiomyopathy. This radiograph was performed the next day following diuretic therapy and showed resolution of the pulmonary edema. The following week he had a collapsing event with hind limb weakness. His hind limb pulses were weak and nail beds were blue, suspicious of an aortic thrombus. Thrombosis is a common complication of hypertrophic cardiomyopathy. Euthanasia was performed at that time.
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