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The heart is an unusual site of metastasis from any malignancy.We report a case of cardiac metastasis from colorectal cancer.A 70-year-old woman was referred with a presumptive diagnosis of sigmoid colon cancer with cardiac myxoma.Two-dimensional echocardiography showed a 4 cm × 4.5 cm mobile mass on the lateral right atrial wall,and computed tomography revealed a low attenuated lobulating mass in the right atrium.The patient underwent anterior resection for sigmoid colon cancer(T4N2).Thereafter,she experienced progressive shortness of breath.Therefore,a cardiac operation was performed 2 wk after the colorectal operation.Histological examination revealed adenocarcinoma,which was identical to the primary lesion.Although two-dimensional echocardiography has become the diagnostic test of choice for detecting cardiac tumors,in patients with colorectal cancer showing a cardiac mass,further diagnostic evaluation such as a magnetic resonance imaging might be necessary.
The heart is an unusual site of metastasis from any malignancy. We report a case of cardiac metastasis from colorectal cancer. A 70-year-old woman was referred with a presumptive diagnosis of sigmoid colon cancer with cardiac myxoma. Two-dimensional echocardiography showed a 4 cm × 4.5 cm mobile mass on the lateral right atrial wall, and computed tomography revealed a low attenuated lobulating mass in the right atrium. The patient underwent anterior resection for sigmoid colon cancer (T4N2). Thereafter, she experienced progressive shortness of breath. Thus, a cardiac operation was performed 2 wk after the colorectal operation. Histological examination revealed adenocarcinoma, which was identical to the primary lesion. Although two-dimensional echocardiography has become the diagnostic test of choice for detecting cardiac tumors, in patients with colorectal cancer showing a cardiac mass, further diagnostic evaluation such as a magnetic resonance imaging might be necessary.