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Article
December 1964

Positive Contrast Medium (Iophendylate) in Diagnosis of Acoustic Neuroma

Arch Otolaryngol. 1964;80(6):698-706. doi:10.1001/archotol.1964.00750040714012
Abstract

Accuracy in the roentgen diagnosis of acoustic neuroma has been greatly enhanced by the use of positive contrast media of the iophendylate (Pantopaque) type. This examination represents an extension of the commonplace oil myelography technique to the examination of the cerebellopontine cisternae and their extensions into the acoustic canals. The equipment required is available in most departments of radiology.

Tumors when present in an extracanalicular position can be quite clearly depicted together with their blood supply and relationship to the major vessels. Of further value has been the demonstration of the often anomalous vessels of the posterior fossa. For example, the individuals who on one side have an absent or a small posterior-inferior cerebellar artery and a large anterior-inferior cerebellar artery can be readily detected. As pointed out by Atkinson,1 ligation of this vessel would be almost uniformly fatal. Tumor extension varies from polypoid tumors extending cephalad, mesially, or

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