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DOI:10.2214/AJR.07.3025
AJR 2008; 191:578-581
© American Roentgen Ray Society

Clinical Observations

MRI of Glossopharyngeal Neuralgia Caused by Neurovascular Compression

Akio Hiwatashi1, Toshio Matsushima2, Takashi Yoshiura1, Atsuo Tanaka3, Tomoyuki Noguchi1, Osamu Togao1, Koji Yamashita1 and Hiroshi Honda1

1 Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
2 Department of Neurosurgery, Hamanomachi Hospital, Fukuoka, Japan.
3 Department of Radiology, Hamanomachi Hospital, Fukuoka, Japan.

OBJECTIVE. Glossopharyngeal neuralgia is rare but causes severe pain. We retrospectively evaluated preoperative MR images of patients with glossopharyngeal neuralgia caused by neurovascular compression.

CONCLUSION. MRI may be beneficial in patients with glossopharyngeal neuralgia and an offending compressing artery. If the offending vessel was the posterior inferior cerebellar artery (PICA), a loop formation at the supraolivary fossette was always seen, whereas if it was the anterior inferior cerebellar artery (AICA), glossopharyngeal neuralgia was difficult to diagnose before surgery.

Keywords: glossopharyngeal neuralgia • MRI • neurovascular compression


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