Benign cystic mesothelioma: false-positive iodine accumulation in a patient with oncocytic follicular thyroid carcinoma.

Abstract

Whole-body (131I) scintigraphy (WBS) is used to detect residual or metastatic tissue during treatment of differentiated thyroid carcinoma in combination with thyroglobulin (Tg) and ultrasonography of the neck. It is a highly sensitive method, but there is a high rate of false positives. We report the case of a 52-year-old woman with false-positive iodine accumulation in a benign cystic mesothelioma discovered during treatment for a oncocytic follicular thyroid carcinoma (stage pT2 pNx Mx). This lesion was detected by WBS and confirmed by surgery and histopathologic analysis.

• Authors: Marie Meyer, Yann Godbert, Isabelle Soubeyran, Anne-Laure Cazeau, Francoise Bonichon
• Journal: Clinical nuclear medicine (Clin Nucl Med) Vol. 39 Issue 9 Pg. e395-7 (Sep 2014) ISSN: 1536-0229 [Electronic] United States
• PMID: 24217550 (Publication Type: Case Reports, Journal Article)

Chemical References

• Iodine Radioisotopes

Topics

• Adenocarcinoma, Follicular (diagnostic imaging, secondary)
• Diagnosis, Differential
• False Positive Reactions
• Female
• Humans
• Iodine Radioisotopes
• Mesothelioma, Cystic (diagnostic imaging)
• Middle Aged
• Peritoneal Neoplasms (diagnostic imaging, secondary)
• Radionuclide Imaging
• Thyroid Neoplasms (diagnostic imaging, pathology)