A probable right atrial myxoma prolapsing through the tricuspid valve into the right ventricle: a case report.

Introduction: Myxoma is the most common primary cardiac tumour. This case report illustrates the case of a probable right atrial myxoma prolapsing through the tricuspid valve into the right ventricle, and the fatal outcome if such a mass is not promptly detected and excised.

Case Presentation: A 51-year old man presented with a 1-year history of recurrent pedal and abdominal swelling, and 6-month history of progressive dyspnoea on exertion. Transthoracic echocardiography showed a large right atrial mass prolapsing through the tricuspid valve into the right ventricle. Patient discharged himself against medical advice and died about one hour after getting home while trying to stand up from the sitting position.

Conclusion: Cardiac myxomas should always be considered when the cause of heart failure is not obvious. Transthoracic echocardiography remains an invaluable tool in the diagnosis, and prompt treatment is necessary to avoid fatal outcomes.