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Research ArticleSPINE

Giant Cell Tumor of the Thoracic Spine Simulating Mediastinal Neoplasm

Hideyuki Sakurai, Norio Mitsuhashi, Kazushige Hayakawa and Hideo Niibe
American Journal of Neuroradiology October 1999, 20 (9) 1723-1726;
Hideyuki Sakurai
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Norio Mitsuhashi
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Kazushige Hayakawa
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Hideo Niibe
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Abstract

Summary: A case of giant cell tumor of the thoracic spine simulating mediastinal neoplasm was identified on plain films, CT scans, MR images, and with scintigraphy. CT showed a hypervascular soft-tissue mass with shell-like calcification in the right upper mediastinum. MR imaging showed a collapse of the T1 vertebral body and a mass extending to the mediastinum. The mass had a low signal on T1-weighted MR images and a predominantly high signal on T2-weighted images with heterogeneity. Technetium-99m methylene diphosphonate bone scintigraphy showed intense uptake in both the T1 and marginal parts of the mediastinal mass. There was no accumulation of gallium-67 citrate, but 18-fluorine fluorodeoxyglucose positron emission tomography showed marked uptake. The variation in these imaging findings played an important role in the differential diagnosis of this uncommon mediastinal mass.

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American Journal of Neuroradiology
Vol. 20, Issue 9
1 Oct 1999
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Giant Cell Tumor of the Thoracic Spine Simulating Mediastinal Neoplasm
Hideyuki Sakurai, Norio Mitsuhashi, Kazushige Hayakawa, Hideo Niibe
American Journal of Neuroradiology Oct 1999, 20 (9) 1723-1726;

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Giant Cell Tumor of the Thoracic Spine Simulating Mediastinal Neoplasm
Hideyuki Sakurai, Norio Mitsuhashi, Kazushige Hayakawa, Hideo Niibe
American Journal of Neuroradiology Oct 1999, 20 (9) 1723-1726;
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