Lymphoma is a large category of tumors with considerable heterogeneity. Although it tends to occur in lymph nodes, due to the distribution characteristics of the lymphatic system, lymphoma is a systemic disease and can invade almost any tissues and organs in the body. The prevention and treatment research task is arduous in order to further improve the diagnosis and treatment technology of lymphoma and promote the new theory and technology of lymphoma clinical research New methods to strengthen cooperation and exchanges between hospitals at all levels The seminar on the new progress of lymphoma diagnosis and treatment sponsored by Chengdu High-tech Medical Association was successfully carried out on Tencent Video on November 13, 2023 This meeting will employ experts in oncology and related fields inside and outside the province to teach, the content involves a wide range, is closer to the clinical, has a strong advanced, practical and controllable, worthy of the majority of primary doctors to learn