A 45 year old woman presented with recurrent episodes of rapid non-sustained palpitations and associated dizziness. She had no significant medical history or family history of cardiac disease. Examination revealed a soft systolic murmur. ECG showed sinus rhythm with left ventricular hypertrophy on voltage criteria and inferolateral T wave changes. Transthoracic echocardiography demonstrated the unusual finding of mid-ventricular hypertrophic obstructive cardiomyopathy with systolic cavity obliteration at the papillary muscle level and an associated intracavity velocity of 4 m/s. There was sparing of the basal …