Fig. 2From: Pigmented villous nodular synovitis mimicking metastases on 18F-FDG PET/CT in a patient with rectal mucosal melanoma: a case reportSagittal positron emission tomography (PET; a), computed tomography (CT; b), and fused Fluorine-18 fluorodeoxyglucose (18F-FDG) PET/CT (c) of the patient’s left ankle and left foot. Two 18F-FDG-avid lesions were present in these locations beside the flexor hallucis longus muscle and tendon (arrows)Back to article page