Abstract
Pigmented villonodular synovitis (PVNS) is a metaplastic process that can occur in the synovium, bursae or tendon sheaths and can be localized or diffuse. Its features on radiographs and computed tomography are nonspecific, but magnetic resonance imaging is diagnostic. Its appearance on fluorodeoxyglucose (FDG) positron emission tomography (PET) is not well described. We present a case of recurrent squamous cell carcinoma of the floor of the mouth with an FDG-avid lesion of the left upper arm on a whole-body PET scan that was shown to be PVNS on subsequent biopsy. To our knowledge, this is one of the very few cases reported in the literature describing FDG avidity of PVNS. We explore the features of PVNS on various imaging modalities and its potential for being mistaken for malignancy. J Med Cases. 2014;5(4):253-255 doi: http://dx.doi.org/10.14740/jmc1691w
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
