[Massive pulmonary embolism due to post-traumatic pseudo-aneurysm due to rupture of the left hepatic artery, revealed by dissecting aneurysm below the capsule of the right lobe of the liver (author's transl)].

We report a case of trauma of the left lobe of the liver causing left centro-hepatic contusion (stage III) revealed by infective jaundice. Secondarily, the appearance of a right subcapsular hematoma corrected the diagnosis, permitting the authors to proceed to angiographic exploration and consider operation on the right side, but the patient had a massive pulmonary embolism. This case recalls the diagnostic difficulties soon after a contusion, the diffusion of a hematoma under pressure from left to right, then from the liver towards the hepatic venous system, the risk of pulmonary embolism, from an aneurysm of the hepatic artery.