<prompt> All of the following are examples of a round cell tumor, except:NeuroblastomaEwings sarcomaMedulloblastomahaemangioblastoma  <response>: The differential diagnosis of small round cell tumors include: Neuroblastoma Wilms tumor Lymphoma Rhabdomyosarcoma Ewing sarcomaprimitive neuroectodermal tumor Medulloblastoma Retinoblastoma neuroblastoma Ewing sarcoma Haemangioblastoma is CNS tumor showing proliferation of capillaries and thin walled vessels. 