For neuroblastoma, the final diagnosis requires the patient to undergo surgical treatment. During the surgery, the neuroblastoma is completely excised, and a small amount of tumor tissue is retained for pathological sectioning. The diagnosis is determined based on the results of the pathological examination, which assesses the specific cells of the neuroblastoma, whether it is benign or malignant, and its level of malignancy. This also determines how the patient will receive subsequent treatments like radiotherapy and chemotherapy. In addition to relying on pathological examinations, most neuroblastoma patients can also undergo more thorough examinations. In most cases, elevated levels of catecholamines and their metabolites can be found in the blood or urine of neuroblastoma patients, significantly higher than that of the normal population.