Methods
With Institutional Review Board approval from Children’s Healthcare of Atlanta, the electronic anatomic pathology database was queried for cases of PTGC that were diagnosed between January 1, 2000 through December 31, 2020. Data included age and sex at diagnosis as well as location of involved lymph nodes. Blood test results, radiologic imaging, and duration of follow-up evaluation were extracted from the electronic medical record (EMR). Microsoft Excel (v16.62, 2022) was used for database management, and GraphPad Prism (v9.3.1, 2022) was used for statistical analyses.