Abnormal F-18-fluoro-deoxy-glucose (FDG) accumulation in post-healing Coronavirus disease 2019 (Covid-19) pneumonia lesions

抄録

A man in his 70s underwent FDG-PET 6 months after Covid-19 pneumonia was cured. The cure was confirmed with a negative polymerase chain reaction (PCR) test. At the time of PET examination, CRP was 0.06 mg / dL, WBC number was 6300 / μL, which indicates no inflammatory reaction was observed, and no obvious symptoms such as fever were observed. CT images of FDG-PET / CT showed ground glass opacities (GGO) on the right lung S6. In FDG-PET images, moderate FDG abnormal accumulation were observed in the same area, and the Standardized uptake value (SUV) max was 3.0. Many investigators reports abnormal high FDG uptake by active Covid-19 pneumonia. It should be noted that abnormal FDG accumulation by GGOs may continue to be observed after healing.