Right Cardiac Chambers' Involvement as the First Manifestation of Recurrent Complex Karyotype Acute Myeloid Leukemia.

We describe a case of a 21-year-old male, with a history of acute myeloid leukemia (AML) treated with allogeneic hematopoietic cell transplantation, referred to our department for atypical chest pain and dyspnea. Echocardiography revealed an extensive mass involving right cardiac chambers and tricuspid valve annulus, with increased thickness and impairment of right ventricle. Cardiac magnetic resonance confirmed the presence of cardiac mass involving pulmonary artery trunk, pericardial sleeves, and lung parenchyma. These findings were attributed to a manifestation of recurrent AML involving the right heart.