The reason for splenectomy was the interval enlargement of the splenic mass which initially had been identified incidentally during the cystic pancreatic mass workup and followup. 

Working diagnosis for the cystic pancreatic mass is an IPMN or mucinous cystadenoma.

Differentiantion between splenic hamartoma and hemangioma is not always clear cut - see pathology report - however the CD8 positivity is a very strong indicator against the differential diagnoses of splenic hemangioma, Littoral cell angioma, splenic lymphangioma, hemangioendothelioma, sclerosing angiomatoid nodular transformation, angiosarcoma.

See also:

• splenic lesions
• splenic hamartoma
• splenic hemangioma
• splenic lymphangioma
• hemangioendothelioma
• angiosarcoma
• cystic pancreatic masses