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Solitary Central Nervous System Relapse of Posttransplant Lymphoproliferative Disorder on 18F-FDG PET/CT.

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ABSTRACT A 41-year-old woman received stem cell transplant due to acute myeloid leukemia. Six months after the stem cell transplant, the patient experienced monomorphic PTLD (posttransplant lymphoproliferative disorder) and underwent… Click to show full abstract

ABSTRACT A 41-year-old woman received stem cell transplant due to acute myeloid leukemia. Six months after the stem cell transplant, the patient experienced monomorphic PTLD (posttransplant lymphoproliferative disorder) and underwent chemotherapy. Postchemotherapy PET/CT did not show any abnormal 18F-FDG accumulation in the scanned body, including brain. Four months later, she presented with nausea and vomiting. Brain MRI showed a lesion in the right temporal lobe. In addition to the abnormal 18F-FDG accumulation in the brain, no other abnormal foci were noted in the torso PET/CT. Biopsy pathology confirmed the diagnosis of monomorphic PTLD.

Keywords: pet; solitary central; posttransplant lymphoproliferative; lymphoproliferative disorder; 18f fdg

Journal Title: Clinical nuclear medicine
Year Published: 2022

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