Abstract
A nine-year-old female Pomeranian presented with a one-year history of intermittent episodes of coughing. Clinical signs included severe dyspnea and cyanosis. Breath sounds were loud only around the caudal lobe of the lung. The clinical signs and a radiological examination of the thorax indicated that the dog had pulmonary emphysema. Computed tomography of the thorax revealed a large rounded area of radiolucency surrounded by a thin radiopaque structure. We resected several resectable vesicular structures and sutured other unresectable vesicular structures. Histological examination revealed multiple cysts lined by bronchial epithelia,with some cartilage and connective tissues. The dog recovered well after surgery and survived with no signs of respiratory illness.