Asymptomatic COVID-19 Infection Detected on 18F-FDG PET/CT Scan Done for Multiple Myeloma.

A 69-year-old woman with multiple myeloma came to our department for F-FDG PET/CT scan for routine surveillance. The patient denied any history of fever, cough, shortness of breath, or body aches. F-FDG PET/CT scan from vertex to knees was performed. PET/CT images revealed extensive peripheral ground-glass opacities showing intense FDG uptake (SUVmax 12) involving bilateral lower lobes. Possibility of an infective etiology including novel coronavirus (COVID-19) infection was raised. The patient's oropharyngeal swab for COVID-19 by polymerase chain reaction amplification test came back positive for COVID-19 infection. The patient and her husband were advised home quarantine for 14 days.