{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,14]],"date-time":"2026-03-14T19:01:08Z","timestamp":1773514868113,"version":"3.50.1"},"reference-count":11,"publisher":"BMJ","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Reports"],"accepted":{"date-parts":[[2018,6,3]]},"abstract":"<jats:p>We report a 57-year-old man presenting with symptoms of sharp pricking, exertional retrosternal chest pain multiple times, each episode lasting for a few seconds. On evaluation, the ECG of the patient showed normal sinus rhythm with T wave inversions in leads V1\u2013V3. Troponin T test was negative. Transthoracic echocardiography showed a globular mass in the interventricular septum. Cardiac MRI was suspicious of the lesion to be a hydatid cyst. 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