From Biology-Online Dictionary
(Science: cardiology, oncology, tumour) a very rare primary cardiac tumour, composed of connective tissue, located in the left or right atrium.
symptoms include chest pains, shortness of breath, orthopnoea, paroxysmal nocturnal dyspnoea, fainting, palpitations, dizziness and syncope.
diagnosis is confirmed by echocardiogram. Treatment involves the surgical excision of the tumour.