<prompt> Neuroblastoma originates fromAdrenalsMediastinumChest wallPeripheral nerves  <response>: Neuroblastoma is a malignant tumor of the autonomic nervous system derived from the neural crest.The most common sites of primary tumours are the adrenals30,paraveebral retroperitoneum28,posterior mediastinum15,pelvis5 cervical area. Reference:Essential pediatrics-Ghai,8th edition,page no:616. 