A brain tumor pressing on either the cochlear nerve from the inner ear or on any of the projecting fibers into the brainstem or cerebellum can experience the symptoms you describe of imbalance and tinnitus. If these symptoms are bothering her more than anything else then, she should get a couple of things: 1. Audiogram 2. Tinnitus Exam (usually can be done by specially trained audiologist 3. Neuro-otologist (Neurologist or ENT person with fellowship training and expertise in the hearing and balance systems). Please write to me at: www.bit.ly/drdariushsaghafi with more questions and rate this a 5 STAR ENCOUNTER.