Tumors rarely metastasize to the heart. If a tumor does metastasize to the heart then there may be one or more changes seen in the ECG.


Tumors that metastasize to the heart with some frequency:

(1) lung carcinoma

(2) malignant melanoma

(3) malignant lymphoma

(4) leukemia

(5) breast cancer

(6) gastric carcinoma


Changes that can be seen in the ECG:

(1) supraventricular tachyarrhythmia (atrial fibrillation, other)

(2) acute myocardial infarction (if a coronary artery is compressed)

(3) changes of chronic pericarditis

(4) T wave inversion (localized or diffuse)

(5) nonspecific ST segment changes


Clinical findings may include:

(1) chest pain

(2) dyspnea

(3) tachycardia


The workup of the patient may include:

(1) serum troponin levels to detect myocardial necrosis

(2) echocardiography

(3) pericardial biopsy or cytology examination of the pericardial fluid


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