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Revista argentina de endocrinología y metabolismo

On-line version ISSN 1851-3034

Abstract

KOWADLO, A. R.; ZUND, S.  and  PEREZ IRIGOYEN, C.. Probe-guided surgery: metastases of a papillary thyroid carcinoma. Surgical Excision. Rev. argent. endocrinol. metab. [online]. 2008, vol.45, n.4, pp. 162-170. ISSN 1851-3034.

A male patient with papillary thyroid cancer -folliculary variety- is chosen to be presented. After thyroidectomy, lymfhadenectomy and therapeutic dose of radioiodine treatments, cancer relapse was observed. After thyrotrophyn supressive therapy with l-thyroxine, a high serum thyroglobulin concentration was observed. The Ultrasonography ( US) and Magnetic Resonance (MR) images showed visible node structures in the neck. This node structures were probably going to concentrate I-131 as seen in the first whole body scan after therapeutic dose. Therefore a radio-guided surgery was planned as the best choice. (Institute Gustave Roussy protocol). A therapeutic dose of radioiodine (I-131) was given and up to the 4th day a whole body scan was performed. In the 5th day a gamma- probe-guided surgery was performed as well, and localized metastatic foci in the pretracheal region and under right recurrent laryngeal nerve. No other foci were identified with the probe at surgery. Forty eight hours after surgery a new whole-body scan was made again. The procedure was successful. The metastatic lessions were completely dissected. The last whole body scan showed that radioiodine concentration had disappeared at all. Forty five days and three months after surgery under levothyroxin treatment, the serum thyroglobulin level concentration decrease to very low values.

Keywords : Thyroid Cancer; Probe-Guided Surgery.

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