Lung lobe torsion in a cat with chronic feline asthma.

Lung lobe torsion, although rare in cats, can be seen as a sequela to chronic respiratory disease. Clinical signs may include lethargy, coughing, hemoptysis, and respiratory distress. Lung lobe torsion may be diagnosed using radiography, ultrasonography, contrast bronchography, bronchoscopy, or thoracoscopy. Stabilization with fluids, oxygen, and supportive care followed by thoracotomy and lobectomy of the affected lobe(s) are necessary for a successful outcome. Diagnosis and treatment of lung lobe torsion is described in a 12.5-year-old cat with a history of feline asthma.