Key result
TTE reveals an anomalous hypertrophied muscle band mimicking an LV mass.
Case Report (n=1)
Highlights the importance of echocardiography in identifying rare anatomical variants like an anomalous hypertrophied muscle band mimicking an LV mass.
Recognize anomalous LV muscle bands as mass mimics on TTE; single case leaves open prevalence and diagnostic criteria.
A 37-year-old man referred for non-cardiac chest pain evaluation to our tertiary care centre. There were no risk factors for coronary artery disease. Clinical examination and 12-lead ECG were normal. Transthoracic echocardiogram revealed a finger-like projection in the paraseptal region towards the left ventricle (LV) measuring 5×1.4 cm (figures 1⇓⇓–4; videos 1⇓–4).Grossly, it was mimicking LV mass without any gradient across (as opposed to hypertrophic cardiomyopathy). There was no evidence of left ventricular hypertrophy (neither concentric nor eccentric). Echotexture was the same as that of …
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Bhairappa et al. (2013) conducted a case report in Anomalous hypertrophied muscle band in LV (n=1). Transthoracic echocardiogram was evaluated on Echocardiographic findings. Transthoracic echocardiogram in a 37-year-old man revealed a 5x1.4 cm anomalous hypertrophied muscle band in the left ventricle mimicking an LV mass.
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