Delayed Formation of a Massive Atrial Hematoma After Coronary Intervention Manifesting With an Isolated Cough: Multimodality Imaging and Outcome.

Coronary artery perforation is a relatively rare but potentially life-threatening complication of percutaneous coronary intervention because it could result in cardiac tamponade; exceptionally, distal coronary perforation could cause an acute formation of a mural hematoma, which could also prove lethal without adequate management. We report an exceptional case of a 76-year-old man in whom an important left atrial hematoma formed progressively over weeks after a planned percutaneous coronary intervention and manifested with an isolated cough. Diagnosis was made using multimodality imaging. A conservative strategy was adopted and produced a favourable outcome.