Apical non-obstructive hypertrophic cardiomyopathy (Yamaguchi hypertrophy)
A male chronic smoker presents with recurrent chest pain and dyspnea.
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Marked myocardial hypertrophy of left lateral ventricle is seen, with marked myocardial thickening at apex, and significant narrowing during systole.
EKG of the patient showed giant negative 'T' wave, with 2-D echo features suggestive of apical HCM (also known as 'Yamaguchi's hypertrophy).
- Yamaguchi H, Ishimura T, Nishiyama S et-al. Hypertrophic nonobstructive cardiomyopathy with giant negative T waves (apical hypertrophy): ventriculographic and echocardiographic features in 30 patients. Am. J. Cardiol. 1979;44 (3): 401-12. - Pubmed citation