Primary Brain Sarcoma Presented on FDG PET/CT

This is the authors' abstract. We don't add key points for this paper.

A 62-year-old man had dizziness and dysarthria for 4 months and limited mobility of the left upper extremity for 1 month. An outside enhanced MR showed a space-occupying lesion in the right frontal lobe. Since the patient had pancreaticoduodenectomy, gastrostomy, and jejunostomy 8.5 years ago for poorly differentiated adenocarcinoma of the small intestine, brain metastasis was suspected. FDG PET/CT demonstrated increased FDG activity in the right frontal lobe lesion, but no FDG-avid lesion was found in other parts of the body. Following surgical resection, histopathology examination indicated sarcoma. The patient underwent brain radiotherapy afterward.