Organ involvement according to the initial presentation
| Group | Organ involved at initial presentation | Number of patients with subsequent organ involvement identified following presentation | Organs involved |
| Head and neck group (n=14) | Orbit (n=6/14) | 1/6 | Pterygopalatine fossa and retroperitoneum |
| Nasopharynx (n=6/14) | 1/6 1/6 | Lungs Salivary glands | |
| Salivary gland (n=1/14) | 1/1 | Pancreas and retroperitoneal | |
| Cervical lymph node (n=1/4) | 1/1 | Biliary tree | |
| Pancreatobiliary group (n=60) | Pancreas (n=56) | 30/56 2/56 1/56 1/56 1/56 1/56 1/56 1/56 1/56 | Biliary tree Retroperitoneum Gallbladder Biliary tree and kidneys Biliary tree and mediastinal lymph nodes Retroperitoneum and biliary tree Retroperitoneum, lungs and kidneys Biliary tree, lungs and kidneys Biliary tree, parotid, liver and mediastinum |
| Biliary tree (n=4) | 1/4 | Liver, duodenum lungs and |