PET/CT findings in acute gastric anisakiasis.

Acute gastric anisakiasis is caused by the consumption of raw or undercooked fish containing Anisakis larvae. Although several reports have demonstrated the CT features of acute gastric anisakiasis, little is known about the FDG PET/CT findings. We report a 59-year-old woman who underwent FDG PET/CT and was finally diagnosed as having acute gastric anisakiasis. The PET/CT demonstrated focal FDG accumulation in the fornix of the gastric wall and lymph nodes in the lesser curvature and paraaortic regions.