Delayed cerebral radionecrosis with a high uptake of 11C-methionine on positron emission tomography and 201Tl-chloride on single-photon emission computed tomography |
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| Authors: | T. Tashima T. Morioka S. Nishio S. Hachisuga M. Fukui M. Sasaki |
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| Affiliation: | (1) Department of Neurosurgery, Hachisuga Hospital, Munakata, Japan, JP;(2) Department of Neurosurgery, Faculty of Medicine, Kyushu University, Fukuoka, Japan, JP;(3) 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; Fax: + 81-92-6 42-55 26, JP;(4) Department of Radiology, Faculty of Medicine, Kyushu University, Fukuoka, Japan, JP |
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| Abstract: | A 47-year-old woman, who 2.5 years previously had undergone resection of a malignant astrocytoma of the left temporal lobe followed by radiotherapy, was found to have a mass in the left frontal lobe. This showed high uptake of thallium-201 (201Tl) on single-photon emission computed tomography and 11C-methionine on positron-emission tomography, suggesting recurrent tumour. Histological examination of the resected lesion, however, revealed it to be radionecrosis. This case thus illustrates a diagnostic pitfall in the use of these investigations for distinguishing radionecrosis from recurrent malignant glioma. Received: 19 September 1997 Accepted: 16 October 1997 |
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| Keywords: | Radionecrosis Radiotherapy Single-photon emission computed tomography Positron emission tomography |
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