The role of CT scanning in the diagnosis of acoustic neuromas.

CT scanning has an important role as a prime investigate technique in the patient with hearing loss and/or vestibular dysfunction. Lesions larger than two cm in size should be further investigated by angiography. Myelography of the posterior fossa remains the only test that can exclude an acoustic neuroma if small or if there is a negative CT scan. Plain films and tomography are used to exclude other lesions.