Ultrasound image of a 16-year-old British Shorthair cat’s left lateral mandible depicting a sialocoele relative to the mandible, showing a clearly delineated, tubular, 0.17 cm diameter structure with hyperechoic walls, which appears to communicate with the sialocoele. Owing to the location of this structure, it is thought that it may represent a molar salivary gland duct. d = dorsal, v = ventral, lat = lateral