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Apical non-obstructive hypertrophic cardiomyopathy (Yamaguchi hypertrophy)

Case contributed by: Dr Praveen Jha

Presentation:

A male chronic smoker presents with recurrent chest pain and dyspnea.

Patient Data:

Age: 20

Gender: Male

Race: Indian/Pakistani

From the case: Apical non-obstructive hypertrophic cardiomyopathy (Yamaguchi hypertrophy)

Modality: MRI

Marked myocardial hypertrophy of left lateral ventricle is seen, with marked myocardial thickening at apex, and significant narrowing during systole.

Case Discussion:

EKG of the patient showed giant negative 'T' wave, with 2-D echo features suggestive of apical HCM (also known as 'Yamaguchi's hypertrophy).

Related artciles:

References:

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