01.08.2014 | Case Report
Pulmonary sequestration: a 131I whole body scintigraphy false-positive result
Erschienen in: Annals of Nuclear Medicine | Ausgabe 7/2014
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A 35-year-old woman affected by a well-differentiated papillary thyroid carcinoma was referred to our hospital to perform a 131Iodine (131I) whole body scintigraphy for restaging purpose. The patient had been previously treated with total thyroidectomy and three subsequent doses of 131I for the ablation of a remnant jugular tissue and a suspected metastatic focus at the superior left hemi-thorax. In spite of the previous treatments with 131I, planar and tomographic images showed the persistence of an area of increased uptake at the superior left hemi-thorax. This finding prompted the surgical resection of the lesion. Histological examination of the surgical specimen showed the presence of a pulmonary tissue consistent with pulmonary sequestration. Even though rare, pulmonary sequestration should be included in the potential causes of false-positive results of radioiodine scans.
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