A thrombus in the right pulmonary artery and its follow-up using transoesophageal echocardiography.

Using transoesophageal echocardiography, the authors documented development of a right pulmonary artery thrombus in a patient with pulmonary hypertension due to chronic obstructive lung disease. This case confirms the potential of transoesophageal echocardiography in diagnosing pulmonary artery diseases.