<prompt> True about neuroblastomaTumor of automatic nervous systemMetastasis rarely presentEarliest detected in late childhoodMost common site is Adrenal medulla  <response>: Neuroblastoma is a malignant tumor of the autonomic nervous system derived from the neural crest.It is a disease of early childhood with 90 of patients presenting before 5 years of age almost 50 of patients presenting within the first 2 years.The most common site is adrenal medulla30.Metastasis present in 60-70 children,are usually to the skeletonfacial bones,skull,bone marrow and lymph nodes. Reference:Essential pediatrics-Ghai,8th edition,page no:616,617. 