Reports a unique case of an anomalous band in the heart and reviews 19 previous cases, proposing an embryological explanation.
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Rare anomalous bands merit echocardiographic awareness; leaves open prevalence and clinical relevance.
An anomalous band, unique in its extent, has been observed in a 54-year-old man who died as a result of acute myocardial infarction. The published reports have been briefly reviewed. The band in all I9 previously reported cases inserted into the anterior or posterior mitral valve leaflets or straddled the left atrial cavity. An embryological explanation has been put forward.
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Olsen et al. (1972) studied this question.
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