Neuroblastoma is a childhood cancer that starts in immature nerve cells, often before age 5, and may cause a lump in the abdomen, neck or chest, bone pain, dark circles around the eyes or swelling as it presses nearby tissues or spreads. Early diagnosis with imaging and biopsy guides care. Treatments include surgery, chemotherapy, radiation, stem cell transplant and newer immunotherapies, with outcomes depending on risk group and response to therapy. With expert evaluation by Dr Nandini Hazarika, children can receive tailored treatment and support for better prognosis and recovery.