Mid-ventricular hypertrophy without clinically apparent obstruction.
D000293:Adolescent; D006332:Cardiomegaly / Q000175:diagnosis / Q000473:pathology*; D002312:Cardiomyopathy, Hypertrophic / Q000175:diagnosis; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D009206:Myocardium / Q000473:pathology*