We report a case of pulmonary trunk aneurysm extending into the left pulmon
ary artery, due to pulmonary hypertension secondary to mitral valve disease
. The mitral valve was replaced with a bileaflet mechanical prosthesis. A D
acron graft interposed between main trunk and left pulmonary artery branch,
and right pulmonary branch attached to the graft in an end-to-side fashion
. Early postoperative angiogram revealed a very successful treatment.