Hemoptisis masiva y hemotórax izquierdo por aneurisma disecante de la aorta torácica abierto a pulmón y cavidad pleural

We present a 70 year old male with long standing systemic arterial hypertension that presented with massive hemoptysis and left hemothorax. Necropsy showed a dissecting aneurysm of the aortic arch rupturing into the upper lobe of the left lung and the left pleural cavity, an uncommon cause of massive hemoptysis and hemothorax. The etiology of the aneurysm and dissection were probably related to the systemic hypertension. Relevant facts regarding this pathology are discussed.