A cardiac calcified amorphous tumour (CAT) is an extremely rare nonneoplastic tumour affecting heart chambers and valves. It may mimic other cardiac tumours and can present with systemic embolization. There are very few cases reported regarding CAT in the literature due to its erratic presentation. Here we report a case of a 32-year-old male with a cardiac CAT, who presented with exertional dyspnoea and pulmonary Embolism. After 2 D-ECHO and colour Doppler revealing normal valvular function, a pre-operative clinical diagnosis of right atrial myxoma. Cardiopulmonary bypass was done, mass was completely resected and on histopathological examination diagnosis of the calcified amorphous tumour was done. A pulmonary thrombo-embolectomy was done. Postoperative and follow-up care lead to full recovery of the patient.