[Cervico-mediastinal recurrences of differentiated thyroid cancers: value of MRI].
OBJECTIVE
The aim of this study was to evaluate the ability of MRI to detect recurrent differentiated thyroid carcinomas developed in the neck or the upper mediastinum.


RESULTS
MRI was performed in 25 patients, and was compared in 5 cases with surgery. In 20 cases it was compared with I-131 scintigraphy (100 mCi in 14 cases and 5 mCi in 6 cases). The sensibility, specificity and overall accuracy of MRI was respectively: 100%, 66.6%, 82.6%.


CONCLUSIONS
MRI is a good technique to detect recurrent thyroid carcinomas. It is specially interesting to investigate patients with a biological suspicion of recurrence and a negative scintigraphy. Mediastinal localisations that cannot be detected by US can be detected by MRI.
Cyna-Gorse
F
F
Service de Radiologie, Hôpital Saint-Louis, Paris.
Toubert
M E
ME
Zagdanski
A M
AM
de Kerviler
E
E
Feger
C
C
Benchaib
N
N
Attal
P
P
Frija
J
J
Laval-Jeantet
M
M
D000328:Adult; D000368:Aged; D002291:Carcinoma, Papillary / Q000175:diagnosis / Q000556:secondary*; D018265:Carcinoma, Papillary, Follicular / Q000175:diagnosis / Q000556:secondary*; D005069:Evaluation Studies as Topic; D005260:Female; D005500:Follow-Up Studies; D006258:Head and Neck Neoplasms / Q000175:diagnosis / Q000556:secondary*; D006801:Humans; D008207:Lymphatic Metastasis; D008279:Magnetic Resonance Imaging; D008297:Male; D008479:Mediastinal Neoplasms / Q000175:diagnosis / Q000556:secondary*; D008875:Middle Aged; D012680:Sensitivity and Specificity; D013964:Thyroid Neoplasms / Q000473:pathology*; D013965:Thyroidectomy