Abstract
Inflammatory myofibroblastic tumor is currently considered to be a low-grade neoplasm, and it rarely involves the heart. We reported a rare case of a 59-year-old female who received cardiac surgery for complete resection of inflammatory myofibroblastic tumor in the left atrium. Five months after surgery, the patient presented with acute cardiogenic pulmonary edema and subsequent sudden death due to a left atrial tumor which protruded into the left ventricle through mitral annulus during diastole. The recurrence of inflammatory myofibroblastic tumor in the left atrium was strongly suggested clinically.
Highlights
Inflammatory myofibroblastic tumor is currently considered to be a low-grade neoplasm, and it rarely involves the heart
Since cardiac Inflammatory myofibroblastic tumor (IMT) may be potentially fatal if a cardiac valve or the coronary arteries are involved, whenever feasible, complete surgical resection of the tumor remains the mainstay of treatment and seems to have a satisfactory outcome
Immunohistochemistry studies demonstrated positive for vimentin and smooth muscle actin, and negative for CD31, CD34 and desmin in spindle cell components (Figure 2), which was consistent with IMT
Summary
Inflammatory myofibroblastic tumor is currently considered to be a low-grade neoplasm, and it rarely involves the heart. Since cardiac IMT may be potentially fatal if a cardiac valve or the coronary arteries are involved, whenever feasible, complete surgical resection of the tumor remains the mainstay of treatment and seems to have a satisfactory outcome. Transthoracic echocardiography showed a left atrial mass (Figure 1A).
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