text: Results
  primary pancreatic sarcomas are extremely rare. Pancreatic sarcomas are more aggressive than other pancreatic neoplasms.
  
entities.text: ['pancreatic sarcomas']
entities.type: Pathological_formation
entities.entity_id: PMC-3168409-sec-03_T1
entities.text: ['Pancreatic sarcomas']
entities.type: Pathological_formation
entities.entity_id: PMC-3168409-sec-03_T2
entities.text: ['pancreatic neoplasms']
entities.type: Pathological_formation
entities.entity_id: PMC-3168409-sec-03_T3