Abstract
Introduction: The inflammatory myofibroblastic tumour (IMT) rarely located in the breast and, surgıcal resection is enough for the diagnosis and treatment. Case Report: The patient, a 64-year-old female, referred to our centre palpable mass in the right breast. Mammography demonstrated a mass of smoothed contour with calcification in the right breast. After three months later segmental mastectomy was planned as the mass grew. Pathologically features, micromorphological and immunohistochemical staining have confirmed the lesion as being breast IMT. Conclusion: IMTs of the breast is a rare and intermediate ( rarely metastasizing) malignant potential tumour. Due to recurrence and metastasis risk, complete excision with negative margins and regular follow up plays a critical role in the treatment of IMTs.