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Peter David Phelps, MD, FRCS, FRCR; Anthony David Cheesman, FRCS

Arch Otolaryngol Head Neck Surg. 1990;116(8):940-945.

Abstract
• Traditionally, jugulotympanic tumors, also called chemodectomas or paragangliomas, have been evaluated by conventional imaging to show bone erosion and angiography for the definitive diagnosis, location, and extent. More recently, computed tomography has been used to show these features as well as the intracranial extension. Magnetic resonance imaging has added a new dimension, particularly for assessment of intracranial spread and growth downward into the neck. We examined 20 jugulotympanic glomus tumors by computed tomography and magnetic resonance imaging with gadolinium enhancement and believe that these two imaging modalities, combined with clinical assessment, can provide all the necessary information regarding diagnosis, situation, and extent in the majority of jugulotympanic glomus tumors. Godolinium-enhanced magnetic resonance imaging was particularly effective for the detection of small tumors confined to the middle ear and for confirmation that the jugular bulb was not involved. Consequently, angiography is no longer a first-line imaging investigation but rather a preoperative evaluation only in those tumors in which preoperative embolization is required or occasionally when the extent of the tumor, especially in the jugular bulb, cannot be confidently predicted by noninvasive imaging.

(Arch Otolaryngol Head Neck Surg. 1990;116:940-945)

Author Affiliations
From the Department of Radiology, Royal National Throat, Nose and Ear Hospital, London (Drs Phelps and Cheesman), and the Department of Radiology, Walsgrave Hospital, Coventry (Dr Phelps), England.

Footnotes
Accepted for publication March 27, 1990.

Reprint requests to Department of Radiology, Royal National Throat, Nose and Ear Hospital, Gray's Inn Road, London WC1X 8DA, England (Dr Phelps).

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