Cardiac metastasis mimicking acute myocardial infarction in a patient with urachal carcinoma: a case report and diagnostic dilemma

Urachal carcinoma (Ur C) is a rare invasive tumor, prevalent in males, with a poor prognosis, and most of them are in an advanced stage at the time of diagnosis. Cardiac metastatic tumors are relatively rare and usually originate from distant metastases of advanced malignant tumors. When the tumor infiltrates the myocardial tissue and affects the repolarization of the diseased myocardium, the electrocardiogram may show changes in the ST-T segment, which is similar to the electrocardiogram of acute myocardial infarction. During clinical diagnosis and treatment, cardiac metastases are mostly easy to be misdiagnosed or overlooked when the relevant tumor history is unknown. In this paper, we discuss a case of cardiac metastasis of urachal carcinoma suspected to be acute myocardial infarction, and analyze and summarize its clinical features, diagnostic and therapeutic process, and abnormal electrocardiographic changes. In order to provide a reference for the diagnosis and treatment of patients with pericardial metastasis of clinically malignant tumors.