Ultrasonographic diagnosis of a laryngeal cyst in a cat

The ultrasonographic appearance, surgical treatment and pathological classi fication of a laryngeal cyst in a four-year-old cat is described. This is t he first description of such a cyst diagnosed with the help of ultrasonogra phy. The cat presented with dyspnoea and respiratory noise. An intraluminal fluid-filled cyst attached to the vocal cord was identified by ultrasonogr aphy and drained under ultrasound guidance. The cyst recurred three weeks l ater and ultrasonography showed an increase in size compared to the previou s examination. There was no evidence of recurrence of the lesion 18 months after surgical removal.