Review articleThe Echocardiographic Evaluation of Intracardiac Masses: A Review
Section snippets
Normal variants and mimickers
Numerous normal anatomic variants exist that can easily be confused with primary mass lesions. In the LV, webs and heartstrings, prominent or calcified papillary muscles, and dense mitral annular calcification1 can mimic abnormal pathology (note: some LV cords may contain conduction fibers of the left bundle).2, 3 Prominent apical trabeculations, true ventricular noncompaction, and the apical form of hypertrophic cardiomyopathy can also be confused with tumors.4, 5, 6, 7 (Ventricular
Primary tumors
The first description of an intracardiac mass was published in 1559. Before 1960, cardiac tumors were rarely diagnosed before death. An accurate premortem diagnosis was not made until 1934, when a primary cardiac sarcoma was identified. The first successful resection of a cardiac myxoma was in 1954.22, 23, 24, 25, 26 Today, although still rare, cardiac tumors represent an important group of cardiovascular abnormalities that, at least in the case of myxoma, have the potential for complete cure
Metastatic tumors
Whereas primary tumors of the heart are rare, cardiac metastases have been described in up to 20% of patients with malignancies of other organ systems, and are up to 40 times more common than primary tumors.29 No malignant tumor preferentially metastasizes to the heart, with the possible exception of malignant melanoma, which involves the heart in up to 50% of patients.65 Cardiac metastases are encountered typically in patients with widespread systemic tumor dissemination; even in this setting,
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