Pathology Cardiovascular system 1c09a604 Most common tumour of hea Is- A Myxoma B Rhabdomyosarcoma C Fibroma D Leiomyosarcoma High-Yield Explanation Myxoma are the most common primary tumor of the adult hea. Roughly 90% are aerial with the left atrium accounting for 80% Robbins 9 th edition page no. 404