[Inflammatory myofibroblastic tumor of the hepatobiliary pancreatic system: report of three cases and literature review].

Objective To improve the understanding, diagnosis and treatment of inflammatory myofibroblastic tumor (IMT) of the hepatobiliary pancreatic system through the cases review. Methods The clinical data of three cases of pathologically-proved IMT of the hepatobiliary pancreatic system was reported and relevant literatures were reviewed. Results Among three cases of IMT discussed, there consisted of a case of liver, a case of gallbladder and a case of pancreas. The clinical manifestations were nonspecific, and the preoperative diagnosis was difficult. All the patients with suspected malignant tumors underwent surgical treatment. The prognosis was good, with no recurrence. Conclusion IMT is a benign tumor and is rare in hepatobiliary pancreatic system. The clinical manifestations are not typical and the imaging examinations are not specific. Its diagnosis depends on pathology. Surgery is an effective treatment. IMT has a tendency of recurrence, and its postoperative follow-up is of great significance. Key words: Inflammatory myofibroblastic tumor; Liver neoplasms; Gallbladder neoplasms; Pancreatic neoplasms