Local manifestations of neck lymphoma: a. Enlarged lymph nodes, including superficial and deep lymph nodes, are characterized by progressive, painless, hard and pushable lymph nodes, which do not adhere to each other in the early stage but can be fused in the late stage, and anti-inflammatory and anti-tuberculosis treatment is ineffective; superficial lymph nodes are more common in the neck, followed by axilla and groin, and deep lymph nodes are more common in the mediastinum and abdominal aorta. Local compression symptoms caused by enlarged lymph nodes mainly refer to deep lymph nodes, such as enlarged mediastinal lymph nodes, which can cause dysphagia by compressing the esophagus, superior vena cava syndrome by compressing the superior vena cava, and cough, chest tightness, dyspnea and cyanosis by compressing the trachea, etc. In addition to local symptoms, systemic symptoms can also appear. Systemic symptoms can also occur, such as gastric, pancreatic and intestinal involvement in 30% of the digestive system, anemia in the hematopoietic system, associated with bone marrow involvement, occasional exudative pericarditis in the cardiovascular system, liver damage can occur in 5%-15% of patients can develop bone metastases and bone pain, and about 1/3 of patients have renal infiltration and renal failure.