[Left atrial intimal sarcoma: A rare cause of acute heart failure]. / Sarcome intimal de l'oreillette gauche : une cause rare d'insuffisance cardiaque aiguë.

Primitive intimal sarcoma is a rare malignant cardiac tumor. Through the observation of a 41-year-old man who presented with an acute heart failure revealing a left atrial intimal sarcoma, we discuss different diagnostic and therapeutic modalities.