[Recurrence of inflammatory myofibroblastic tumor of chest wall after radical resection;report of a case].

A 61-year-old male presented with an asymptomatic left chest wall (the 7th rib) tumor detected by positron emission tomography(PET). The increase of tumor size was indicated by computed tomography(CT) scan and complete resection including the 6th to 8th rib was performed due to intraoperative rapid diagnosis as sarcoma. The diagnosis of inflammatory myofibroblastic tumor (IMT) was established by final pathological diagnosis. Three years later, he had a relapse of 2 tumors in left chest wall (the 9th, 10th rib), and surgical resection was performed without chest wall resection. Histological findings of a relapse tumor showed a large size tumor cell and a decrease in the number of plasma cell compared to the 1st tumor. These changes may be related to a clinical aggressive behavior.