Laryngeal saccules or laryngeal ventricles are soft tissue masses located between the vocal folds and the lateral wall of the larynx in canines. Their function is not well understood, but in brachycephalic breeds the saccules can become everted and protrude into the laryngeal opening, causing symptoms such as snoring, noisy breathing, coughing, nasal congestion, and shortness of breath in affected dogs.