title: Computed tomography of acoustic neuroma.
abstract: Review of computed tomographic (CT) scans of 49 consecutive patients with surgically excised acoustic neuromas revealed positive scans in 80% following contrast enhancement, with 20% false negative scans. All tumors over 2 cm in diameter were shown by optimal scans with contrast enhancement. The positive scans were evaluated to determine the accuracy of the size of the lesions as predicted by the scan. A radiological approach to the evaluation of suspected acoustic neuromas is suggested.
mesh_terms: D003287:Contrast Media; D003974:Diatrizoate Meglumine; D005188:False Negative Reactions; D006801:Humans; D009442:Neurilemmoma / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed; D000159:Vestibulocochlear Nerve
chemical_list: D003287:Contrast Media; D003974:Diatrizoate Meglumine