抄録
Background: Peliosis is characterized by multiple cyst-like blood-filled cavities, and is potentially hazardous because of the possibility of spontaneous rupture. Herein, we describe a patient with ectopic spleen accompanied by peliosis and epithelial cyst, which mimicked a pancreatic cystic neoplasm.
Case: A 44-year-old asymptomatic male patient was referred for treatment of an enlarged mass in the pancreatic tail.Abdominal computed tomography and magnetic resonance imaging revealed a 3.5-cm cystic lesion with a clear, thick, and smooth cyst wall, which was enhanced by contrast media. Under a tentative diagnosis of mucinous cystic neoplasm of the pancreas, the patient underwent distal pancreatectomy. Postoperative pathological examination identified the lesions as peliosis and epithelial cyst of the intrapancreatic heterotopic spleen.
Conclusion: Cystic formations in the intrapancreatic spleen mimic mucin-producing neoplastic lesions and can be misdiagnosed. Peliosis may cause rapid growth of the cysts, mistakenly indicating a malignant potential of the lesion.
