<prompt> All of the following are examples of round cell tumours except?NeuroblastomaNon Hodgkins lymphomaOsteosarcomaEwings sarcoma  <response>: Small round cell tumours of childhood are:Retinoblastoma.Neuroblastoma.PNET.Rhabdomyosarcoma.Lymphoma.Medulloblastoma.Wilms tumor.Ewings sarcoma. 