title: Cerebral Toxoplasmosis in a Patient with AIDS on F-18 FDG PET/CT.
abstract: The distinction between primary central nervous system (CNS) lymphoma and nonmalignant lesions due to opportunistic infections, in particular cerebral toxoplasmosis, is important because of the different treatments involved. A 32-year-old patient with AIDS was hospitalized for intermittent headaches. Brain magnetic resonance imaging (MRI) showed a small well-enhanced nodular lesion in the right frontal lobe. A fluorine-18 fluorodeoxyglucose (F-18 FDG) positron emission tomography (PET)/computed tomography (CT) scan showed moderate FDG uptake in the nodular lesion of the right frontal lobe. We present a case of cerebral toxoplasmosis in a patient with acquired immunodeficiency syndrome (AIDS) and the usefulness of F-18 FDG PET/CT in the differential diagnosis of the cerebral toxoplasmosis will be discussed.
authors.affiliation: Department of Nuclear Medicine, Keimyung University, School of Medicine, 194 Dongsan-Dong, Jung-Gu, Daegu, Korea.
authors.forename: Hae Won
authors.initials: HW
authors.lastname: Kim
authors.affiliation: Department of Nuclear Medicine, Keimyung University, School of Medicine, 194 Dongsan-Dong, Jung-Gu, Daegu, Korea.
authors.forename: Kyoung Sook
authors.initials: KS
authors.lastname: Won
authors.affiliation: Department of Nuclear Medicine, Keimyung University, School of Medicine, 194 Dongsan-Dong, Jung-Gu, Daegu, Korea.
authors.forename: Byung Wook
authors.initials: BW
authors.lastname: Choi
authors.affiliation: Department of Nuclear Medicine, Keimyung University, School of Medicine, 194 Dongsan-Dong, Jung-Gu, Daegu, Korea.
authors.forename: Seok Kil
authors.initials: SK
authors.lastname: Zeon
keywords: AIDS; CT; Cerebral toxoplasmosis; FDG; PET