The tympanic bulla is easily palpated on the skull of a chinchilla. It is located just rostral and medial to the base of the pinna or external ear (Fig. 1). Figure 1: An anesthetized chinchilla in ...

The right side of the lung, trachea, nasal passages and tympanic bullae appeared normal. We took samples for bacterial culture from the affected lung and also from the white, mucopurulent nasal ...