Role of Whole-body 18F-fluorodeoxyglucose Positron Emission Tomography/Computed Tomography in Difficult to Treat Multifocal Pyomyositis.

18F-fluorodeoxyglucose (FDG) positron emission tomography (PET)/computed tomography (CT) has been used previously for the diagnosis of sepsis of unknown focus and pyrexia of unknown origin. Its use in the diagnosis of pyomyositis has not been fully explored. Pyomyositis was found to be an important cause of sepsis, but its cause has not been fully elucidated in previous studies exploring the role of PET. We studied the role of whole-body 18F-FDG PET/CT in the diagnosis and management of 10 patients with suspected multifocal pyomyositis. In our study, we were able to find a distant focus in 7 out of 10 patients, which led to changes in treatment and outcome.