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Malignant Lymphoma Diagnosed as Gallbladder Carcinoma on 18F-FDG PET/CT
Lian Xu1, Xiaofeng Yu, Yumei Chen
1From the Department of Nuclear Medicine, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China.
Abstract:
Extranodal primary lymphoma of gallbladder is extremely rare. We report a 48-year-old woman initially diagnosed as gallbladder carcinoma with lymph nodes metastases by contrast-enhanced CT and MRI. Meanwhile the images of 18F-FDG PET/CT highly suggested gallbladder carcinoma due to the necrosis in one of the enlarged lymph nodes. However, it was proved to be diffuse large B-cell lymphoma by the histopathological diagnosis.
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