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KMID : 1201620100030030134
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Journal of Women s Medicine
2010 Volume.3 No. 3 p.134 ~ p.136
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False-positive increased FDG uptake on PET-CT in foreign body reactions
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Choi Youn-Jin
Song Min-Jong
Lee Keun-Ho
Hur Soo-Young
Park Jong-Sup
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Abstract
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Together with CA-125 and other imaging techniques such as positron emission tomography-computed tomography (PET-CT) and CT are performed to diagnose primary and recurrent gynecological malignancy. The standardized uptake value (SUV) is a method to assess the radiotracer uptake from a static PET image; maximum SUV is shown with the highest pixcel in the region of interest. It is used to assess questionable lesions and follow-up fluoro-2-deoxy-D-glucose (FDG)-avid masses. Typically, malignant tumors have a SUV max of greater than 2.5 to 3.0. We present a case of ovarian cancer stage IIIC, in which FDG uptake has trickily increased after optimal debulking surgery and chemotherapy. In evaluating malignant recurrence or progression, the possibility of a foreign body reaction should be considered.
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KEYWORD
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PET-CT, SUV, Ovarian cancer, Foreign-body reaction
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