False-positive finding on 18F-FDG PET after chemotherapy for primary diffuse large B-cell lymphoma of the thyroid: a case report

Japanese Journal of Clinical Oncology
Maurizio MarchesiFausto Biancari

Abstract

Primary non-Hodgkin lymphoma of the thyroid is an uncommon disease. It is a potentially aggressive disease and diffuse large B-cell lymphoma of the thyroid may result in 5 year survival rates <50%. Hence adequate follow-up and multimodality treatment for recurrent or persistent disease are required. Since 18F-FDG PET is considered the imaging method of choice for the detection and staging of lymphoma, this was used for restaging of a case of diffuse large B-cell lymphoma of the thyroid after chemotherapy and its diagnostic value is questioned in the present case report. In fact, PET showed a false-positive finding which led to unnecessary surgery.

Citations

Aug 31, 2011·Thyroid : Official Journal of the American Thyroid Association·Mohammad ArabiMilton D Gross
Sep 5, 2008·Acta Oncologica·Chao-Jen LeeSey-En Lin
Jun 15, 2006·Journal of Pediatric Hematology/oncology·Melissa M RhodesSadhna Shankar
Jan 24, 2007·Clinical Nuclear Medicine·Eugene C Lin

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