A five-month-old ragdoll cat presented with severe respiratory signs, unresponsive to medical therapy. Hyperinflation of the right middle lung lobe was diagnosed with radiography and computed tomography. Lung lobectomy following a median sternotomy led to full recovery. Histopathological analysis revealed lobar emphysema and, based on the animal's age, congenital lobar emphysema was considered the most likely diagnosis.
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