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Thyroid nodule MRI
Introduction
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MRI is not a good choice for cervical lymph node metastases evaluation as its sensitivity is low (30-40%), but as an alternative imaging modalitiy, may be useful in the assessment of tumors with the following features:
- Large tumors
- Rapidly growing tumors
- Retrosternal tumors
- Invasive tumors
- To assess the involvement of extrathyroidal tissues
Jeong HS, Baek CH, Son YI, Choi JY, Kim HJ, Ko YH, Chung JH, Baek HJ 2006 Integrated 18F-FDG PET=CT for the initial evaluation of cervical node level of patients with papillary thyroid carcinoma: comparison with ultrasound and contrast-enhanced CT. Clin Endocrinol (Oxf ) 65: 402–407
Kresnik E, Gallowitsch HJ, Mikosch P, Stettner H, Igerc I, Gomez I, Kumnig G, Lind P 2003 Fluorine-18- fluorodeoxyglucose positron emission tomography in the preoperative assessment of thyroid nodules in an endemic goiter area. Surgery 133:294–299. 148.
Zbaren P, Becker M, Lang H 1997 Pretherapeutic staging of hypopharyngeal carcinoma. Clinical findings, computed tomography, and magnetic resonance imaging compared with histopathologic evaluation. Arch Otolaryngol Head Neck Surg 123:908–913