Spontaneous Regression of Clinically Indolent Lymphomas Revealed by 18F-FDG PET/CT

A 48-year-old man and a 55-year-old woman, who were diagnosed with follicular lymphoma and small B lymphocytic cell lymphoma, respectively, underwent initial "watch-and-wait" approach against lymphoma. The initial 18F-FDG PET/CT of both patients showed multiple FDG-avid lymph nodes in the neck, mediastinum, abdomen, and inguinal regions. During their active surveillance, the follow-up PET/CT of both patients revealed spontaneous regression of lymphoma. Received for publication November 2, 2019; revision accepted November 28, 2019. Conflicts of interest and sources of funding: This work was supported by the National Natural Science Foundation of China (81701741). None declared to all authors. Correspondence to: Yaping Luo, MD, Wangfujing, Dongcheng District, Beijing 100730, People's Republic China. E-mail: luoyaping@live.com. Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.

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