<prompt> Most common primary cardiac tumour?MyxomaRhabdomyomaRhabdomyosarcomaAngiosarcoma  <response>: The most common primary tumour of the heart is myxoma. It constitutes 50 of all primary cardiac tumours. Most common site is left atrium. Most common tumour of heart is metastasis from lung cancer. Most common tumour of heart valves is papillary elastoma 