Giant Solitary Fibrous Tumor of the Pancreas: A Case Report and Review of the Literature

Abstract

\n Background: Solitary fibrous tumors (SFTs) originating from the pancreas are rare, only 23 cases have been reported so far. Here, we report the largest one, which has its unique treatment characteristics.Case report: A 42-year-old woman was admitted to the hospital with abdominal pain and abdominal mass, and the preoperative diagnosis was unclear. As the mass was rich in blood vessels, she underwent partial pancreatectomy after embolizing part of the blood vessels by preoperative intervention, which, at final pathology, showed spindle and oval cell proliferation and featured the presence of hemangiopericytoma-like blood. Immunohistochemistry showed cytoplasmic expression of CD34 and nuclear expression of STAT6, and mitotic activity was lower than 4 mitoses/10 high-power fields (HPFs). At the end, she was diagnosed with pancreatic SFT. The postoperative recovery was uneventful and she was alive and free of disease after 8 months.Conclusion: The diagnosis of SFT of the pancreas needs to be done very cautiously. Surgical treatment and postoperative follow-up are more reasonable methods at the moment.