How useful is FDG PET for evaluation of peritoneal spread of tumor

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How useful is FDG PET for evaluation of peritoneal spread of tumor?

FDG PET can detect peritoneal tumor implants, but the sensitivity is generally suboptimal given its low spatial resolution. In general, the smaller the lesion size, the greater the false-negative rate of FDG PET, although CT and MRI also have suboptimal sensitivity when peritoneal lesions are small or located along organ surfaces. Sometimes, mild diffusely increased FDG uptake in the abdomen is visible, suggesting presence of peritoneal tumor spread.

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