Giant hemorrhagic pancreatic pseudocyst with suspected cystic pancreatic tumor: a case report.

Pancreatic pseudocysts are surrounded by a non-epithelialized wall confined to the pancreas and localized to the pancreatic tissue or adjacent pancreatic cavity. In contrast, pancreatic cystic tumors occur less frequently than solid lesions and are often detected incidentally on imaging. Regarding the qualitative diagnosis of pancreatic pseudocysts, it is important to differentiate them from neoplastic cysts. We report the case of a 74-year-old woman with a giant hemorrhagic pancreatic pseudocyst and a suspected cystic pancreatic tumor, wherein distal pancreatectomy and splenectomy with lymph node dissection were performed. The patient was discharged 11 days postsurgery, with a good postoperative course. There are no reports of giant pancreatic pseudocysts larger than 10 cm with hematoma contents. The presumptive diagnosis of pseudocysts based on imaging alone may be difficult. Surgical resection is considered when it is difficult to distinguish a giant pancreatic pseudocyst from a cystic neoplasm.