AUTHOR=Wu Tao , Zhao Xuefeng , Xu Huiqin 

TITLE=False-Positive Radioiodine Uptake in Simple Ovarian Cyst in a DTC Patient: A Case Report

JOURNAL=Frontiers in Oncology

VOLUME=Volume 11 - 2021

YEAR=2021

URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2021.665135

DOI=10.3389/fonc.2021.665135

ISSN=2234-943X

ABSTRACT=Abnormal radioildine accumulation can be caused by various pelvic lesions in thyroid cancer patient. Here we presented an abnormal uptake in the left side of the pelvic cavity on postablative I-131 scintigraphy in a 51-year-old woman with history of stage T1aN1M0 papillary thyroid cancer. The SPECT/CT fused imaging revealed the lesion in the left ovary. Laparoscopic bilateral adnexectomy showed a left ovarian mass (5cm) and pathologic finding showed a simple ovarian cyst. The nonstimulated Tg immediately decressed to 143ng/ml after bilateral adnexectomy three days later and to 0.109ng/ml after 4-month follow-up. Timely intervention measures are very necessary for patients with ovarian cyst with abnormally elevated Tg level.