Reza Vali1, Alaa Bakkari2, Eman Marie2, Mahnaz Kousha2, Martin Charron3, Amer Shammas2. 1. Department of Diagnostic Imaging, The Hospital for Sick Children, University of Toronto, 555 University Ave., Toronto, ON, M5G 1X8, Canada. reza.vali@sickkids.ca. 2. Department of Diagnostic Imaging, The Hospital for Sick Children, University of Toronto, 555 University Ave., Toronto, ON, M5G 1X8, Canada. 3. Brampton Nuclear Services, Toronto, ON, Canada.
Abstract
BACKGROUND: Reactive cervical lymphadenopathy is common in children and may demonstrate increased 18F-fluoro-deoxyglucose (18F-FDG) uptake on positron emission tomography/computed tomography (PET/CT). OBJECTIVE: We sought to evaluate the frequency and significance of 18F-FDG uptake by neck lymph nodes in children with no history of head and neck cancer. MATERIALS AND METHODS: The charts of 244 patients (114 female, mean age: 10.4 years) with a variety of tumors such as lymphoma and post-transplant lymphoproliferative diseases (PTLD), but no head and neck cancers, who had undergone 18F-FDG PET/CT were reviewed retrospectively. Using the maximum standardized uptake value (SUVmax), increased 18F-FDG uptake by neck lymph nodes was recorded and compared with the final diagnosis based on follow-up studies or biopsy results. RESULTS: Neck lymph node uptake was identified in 70/244 (28.6%) of the patients. In 38 patients, the lymph nodes were benign. In eight patients, the lymph nodes were malignant (seven PTLD and one lymphoma). In 24 patients, we were not able to confirm the final diagnosis. Seven out of the eight malignant lymph nodes were positive for PTLD. The mean SUVmax was significantly higher in malignant lesions (4.2) compared with benign lesions (2.1) (P = 0.00049). CONCLUSION: 18F-FDG uptake in neck lymph nodes is common in children and is frequently due to reactive lymph nodes, especially when the SUVmax is <3.2. The frequency of malignant cervical lymph nodes is higher in PTLD patients compared with other groups.
BACKGROUND: Reactive cervical lymphadenopathy is common in children and may demonstrate increased 18F-fluoro-deoxyglucose (18F-FDG) uptake on positron emission tomography/computed tomography (PET/CT). OBJECTIVE: We sought to evaluate the frequency and significance of 18F-FDG uptake by neck lymph nodes in children with no history of head and neck cancer. MATERIALS AND METHODS: The charts of 244 patients (114 female, mean age: 10.4 years) with a variety of tumors such as lymphoma and post-transplant lymphoproliferative diseases (PTLD), but no head and neck cancers, who had undergone 18F-FDG PET/CT were reviewed retrospectively. Using the maximum standardized uptake value (SUVmax), increased 18F-FDG uptake by neck lymph nodes was recorded and compared with the final diagnosis based on follow-up studies or biopsy results. RESULTS: Neck lymph node uptake was identified in 70/244 (28.6%) of the patients. In 38 patients, the lymph nodes were benign. In eight patients, the lymph nodes were malignant (seven PTLD and one lymphoma). In 24 patients, we were not able to confirm the final diagnosis. Seven out of the eight malignant lymph nodes were positive for PTLD. The mean SUVmax was significantly higher in malignant lesions (4.2) compared with benign lesions (2.1) (P = 0.00049). CONCLUSION:18F-FDG uptake in neck lymph nodes is common in children and is frequently due to reactive lymph nodes, especially when the SUVmax is <3.2. The frequency of malignant cervical lymph nodes is higher in PTLDpatients compared with other groups.
Authors: Ji Eun Kim; Eun Kyung Lee; Jae Min Lee; Soon Hwan Bae; Kwang Hae Choi; Young Hwan Lee; Jeong Ok Hah; Joon Hyuk Choi; Eun Jung Kong; Ihn Ho Cho Journal: Korean J Pediatr Date: 2014-05-31
Authors: Lucia Baratto; K Elizabeth Hawk; Lisa States; Jing Qi; Sergios Gatidis; Louise Kiru; Heike E Daldrup-Link Journal: J Nucl Med Date: 2021-10 Impact factor: 10.057
Authors: Reza Vali; Adam Alessio; Rene Balza; Lise Borgwardt; Zvi Bar-Sever; Michael Czachowski; Nina Jehanno; Lars Kurch; Neeta Pandit-Taskar; Marguerite Parisi; Arnoldo Piccardo; Victor Seghers; Barry L Shulkin; Pietro Zucchetta; Ruth Lim Journal: J Nucl Med Date: 2021-01 Impact factor: 11.082