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Diffuse-Type Tenosynovial Giant Cell Tumor of the Shoulder Evaluated by FDG PET/CT

Tang, Kun, MD*; Zheng, Xiangwu, MD*; Lin, Jie, MD*; Wang, Ling, MD

doi: 10.1097/RLU.0000000000002451
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Diffuse-type tenosynovial giant cell tumor is a locally aggressive neoplasm that typically involves the knee and hip but rarely involves the shoulder. In this case, a 74-year-old woman presented a painless mass in the right shoulder. FDG PET/CT demonstrated intense FDG uptake with an SUVmax of 19.2 in the lesion. The mass was dissected and confirmed as diffuse-type tenosynovial giant cell tumor by pathology. Follow-up FDG PET/CT assessment revealed more extensive soft tissue infiltration and adjacent bone erosion 3 years after surgery. Thus, FDG PET/CT well demonstrated the hypermetabolic and local aggressive characteristics of the lesion.

From the Departments of *PET/CT and

Nuclear Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.

Received for publication October 17, 2018; revision accepted November 27, 2018.

Conflicts of interest and sources of funding: none declared.

Correspondence to: Ling Wang, MD, The First Affiliated Hospital of Wenzhou Medical University, Xuefu North Road, Wenzhou, Zhejiang 325000, China. E-mail: laohu9823@163.com.

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