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Jens Thomsen, MD; Carsten Gyldensted, MD; Jack Lester, MD

Arch Otolaryngol. 1977;103(2):65-69.

Abstract
• Computer tomography (CT) was used in 53 consecutive patients with a working diagnosis of cerebellopontine angle tumor. The CT was performed with the 160 x 160 matrix scanner, height of sections was 13 mm. Metrizoate sodium (1.5 ml/kg of body weight) was used for tumor enhancement. Seventeen CT scans revealed tumors; one patient proved at operation to be false-positive. Thirty-six CT scans revealed no tumors; two examinations may prove to be false-negative, but surgical verification has so far not been obtained. The smallest tumor demonstrated by CT extended 7 mm into the angle, while one of the possible false-negative CT scans after iophendylate injection cisternography showed a tumor extending 5 mm into the angle. It is concluded that CT is a harmless, noninvasive neuroradiological procedure, and should precede invasive procedures. It can be used safely in patients with increased intracranial pressure.

(Arch Otolaryngol 103:65-69, 1977)

Author Affiliations
From the Departments of Ear, Nose, and Throat, and Neuroradiology, Rigshospitalet, Copenhagen.

Footnotes
Accepted for publication July 22, 1976.

Reprint requests to University ENT Department, Rigshospitalet, 9 Blegdamsvej, DK 2100, Copenhagen, Denmark (Dr Thomsen).

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ABSTRACT