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Abstract

T stages of tumors of the tongue and floor of the mouth: correlation between MR with gadopentetate dimeglumine and pathologic data.

M Crecco, A Vidiri, O Palma, R Floris, E Squillaci, M Mattioli, F Marzetti and S Squillaci
American Journal of Neuroradiology October 1994, 15 (9) 1695-1702;
M Crecco
Department of Radiology and Diagnostic Imaging, Regina Elena Institute, Rome, Italy.
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A Vidiri
Department of Radiology and Diagnostic Imaging, Regina Elena Institute, Rome, Italy.
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O Palma
Department of Radiology and Diagnostic Imaging, Regina Elena Institute, Rome, Italy.
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R Floris
Department of Radiology and Diagnostic Imaging, Regina Elena Institute, Rome, Italy.
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E Squillaci
Department of Radiology and Diagnostic Imaging, Regina Elena Institute, Rome, Italy.
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M Mattioli
Department of Radiology and Diagnostic Imaging, Regina Elena Institute, Rome, Italy.
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F Marzetti
Department of Radiology and Diagnostic Imaging, Regina Elena Institute, Rome, Italy.
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S Squillaci
Department of Radiology and Diagnostic Imaging, Regina Elena Institute, Rome, Italy.
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Abstract

PURPOSE To define MR accuracy in the evaluation of the T stages of tumors of the tongue and floor of the mouth.

METHODS Fifty-two patients affected by squamous cell carcinoma were studied with a superconductive system at 1.5 T. The study was performed with spin-echo T1- and T2-weighted images before contrast and short spin-echo T1-weighted and gradient-echo sequences after gadopentetate dimeglumine administration. The results obtained with MR were compared with pathologic data.

RESULTS Good correlation of T stages (TNM system) was obtained in 45 of 52 cases. MR did not show four superficial lesions. In one case, infiltration of the cortical bone of the mandible was not demonstrated (MR, T2; pathologic, T4), and in another the lesion was classified as T2 instead of T3, as it was pathologically. One lesion was classified as T4 on MR because of infiltration of the alveolar ridge but was classified as T2 at surgery. In 46 patients who underwent surgery, the accuracy of MR was excellent for predicting the relationship of tumor to midline and oral floor musculature. The results obtained with gadopentetate dimeglumine were better than those obtained in noncontrast studies in 32 (62%) of 53 cases.

CONCLUSION MR showed high accuracy in the study of tumors of the tongue and floor of the mouth.

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American Journal of Neuroradiology
Vol. 15, Issue 9
1 Oct 1994
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T stages of tumors of the tongue and floor of the mouth: correlation between MR with gadopentetate dimeglumine and pathologic data.
M Crecco, A Vidiri, O Palma, R Floris, E Squillaci, M Mattioli, F Marzetti, S Squillaci
American Journal of Neuroradiology Oct 1994, 15 (9) 1695-1702;

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T stages of tumors of the tongue and floor of the mouth: correlation between MR with gadopentetate dimeglumine and pathologic data.
M Crecco, A Vidiri, O Palma, R Floris, E Squillaci, M Mattioli, F Marzetti, S Squillaci
American Journal of Neuroradiology Oct 1994, 15 (9) 1695-1702;
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