The use of rutin in a cat with idiopathic chylothorax

A 9-year-old, male castrated cat was presented with labored breathing and lethargy of 5 d duration. Idiopathic chylothorax was diagnosed based on clinical signs, thoracic radiographs, and thoracentesis. Partial resolution of the pleural effusion followed treatment with rutin, a benzopyrone extracted from plants. The etiology, diagnosis, and treatment of this disease are discussed.