What kind of disease is neuroblastoma in children?

Pediatric neuroblastoma (Neuroblastoma) is a malignant tumor originating from the sympathetic nervous system. It is one of the common solid tumors in children and is more common in children under the age of 5. It typically originates from neural crest cells, which differentiate into components of the sympathetic nervous system during embryonic development. Tumors often occur in the adrenal glands, abdomen, or chest, and may also involve the bone marrow, lymph nodes, and other organs.

Based on the stage of the tumor, molecular characteristics and patient age, neuroblastoma can be divided into three types: low-risk, intermediate-risk and high-risk. Low-risk and intermediate-risk neuroblastoma usually develop slowly and have better treatment effects, with cure rates of more than 90%. High-risk neuroblastoma progresses rapidly and is difficult to treat. The 5-year survival rate is only about 40%-50%.

The pathogenesis of the disease is not fully understood but is related to genetic mutations and chromosomal abnormalities. MYCNgene amplification and chromosomal abnormalities (such as 1p deletion, 11q deletion, etc.) are common biological characteristics and are closely related to the aggressiveness and prognosis of tumors. Some cases have familial genetic predispositions.

The treatment of neuroblastoma includes surgery, chemotherapy, radiotherapy, immunotherapy, autologous stem cell transplantation and targeted therapy. In recent years, immunotherapy and targeted therapy such as anti-GD2monoclonal antibodies (such asDinutuximab) have achieved remarkable results.

In summary, neuroblastoma is a heterogeneous tumor whose severity and treatment strategies depend on risk stratification and molecular characteristics. Early diagnosis and standardized treatment can significantly improve survival rates.

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ReferenceInformation:https://www.cancer.gov/types/neuroblastoma