Abstract
We report the incidental identification of an unsuspected Pigmented Villonodular Synovitis (PVNS) in a patient of known thyroid malignancy (poorly differentiated thyroid carcinoma, PDTC) who underwent whole body 18 Fluorine Flurodeoxyglucose Positron Emission Tomography Computed Tomography (18F FDG PET CT). FDG PET CT showed a FDG avid enhancing lesion in the subscapularis muscle near coracoid process of left scapula. A subsequent MRI showed a lesion anterior to the left glenoid in close proximity to the subcapsularis tendon suggestive of PNVS arising from the subcapsular bursa. This case highlights the non oncological utility of FDG PETCT in musculoskeletal disorders like PVNS.
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