Abstract:

Objective To analyze the clinicopathoiogic characteristics of gastric reactive nodular fibrous pseudotumor (RNFPT), to improve the understanding and preoperative diagnosis of the disease, and to prevent misdiagnose and clinical over-medication. Method Combined with a case of RNFPT admitted to the First Affiliated Hospital of Gannan Medical College, the clinical and pathological characteristics were analyzed through literature review. Result The pathological features of RNFPT is the tumors appear as a disorderly arrangement of fusiform or stellate cells, with clear boundaries, with keloid-like coarse collagen fibers，and with mucoid degeneration or hyaline degeneration. Conclusion Gastric RNFPT is considered to be a rare fibrotic inflammatory lesion caused by inflammatory stimuli or abdominal surgery. it is easy to be confused with gastric carcinoma，as there is no specific imaging manifestation. So it is very necessary to perform intraoperative rapid frozen section for preventing misdiagnosis and clinical over-medication.

Key words: Reactive nodular fibrous pseudotumor, Gastric carcinoma, Misdiagnose