PRIMARY CHORIOCARCINOMA OF THE PULMONARY-ARTERY MIMICKING PULMONARY-EMBOLISM

Due to their rarity, primary tumours of the pulmonary arteries are oft en incorrectly diagnosed as more common diseases such as pulmonary thr omboembolism and are seldom diagnosed during a patient's lifetime. Sur gery or potentially curative chemotherapy may therefore be withheld. W e report a patient with a primary choriocarcinoma of the left pulmonar y artery, which was first suspected on a CT scan. The neoplastic natur e of the obstruction of the pulmonary arteries was confirmed by positr on emission tomography.