CTICasesMyocardial Metastasis from Renal Cell Carcinoma
Imaging findings
In a patient with known metastatic renal cell carcinoma, a small, avidly enhancing nodule is present within the left ventricular myocardium, inconspicuous on a non-gated study; a follow-up scan about six weeks later shows interval growth of this myocardial lesion.
Key takeaways
Although metastatic disease is the most common cardiac tumor pathologically, discrete myocardial metastases are seen less often clinically than primary cardiac tumors or right-heart tumor extension from venous invasion; this renal cell carcinoma metastasis is a reminder to scrutinize the heart even on non-gated, non-cardiac-dedicated chest CT studies in patients with known malignancy.
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