The Location and Size of Pulmonary Embolism in Anti- neoplastic Chemotherapy Patients

embolism (PE) is two to three patients for every 1,000 who present with nonspecific clinical signs and symptoms (1). In patients with a malignant tumor, the incidence of PE is increased by 4-6 times compared to the general population who present with nonspecific clinical signs and symptoms. The risk of thrombus formation increases even more in patients who are receiving chemotherapy and have an increased risk of mortality (2). Therefore, the diagnosis of PE is essential and the diagnostic accuracy must be enhanced using the appropriate diagnostic equipment. Imaging modalities for PE include perfusion-ventilation scan, pulmonary angiography, spiral CT, and MR angiography. CT is less invasive than conventional pulmonary angiography and has the advantage of visualizing the emboli within the pulJ Korean Soc Radiol 2010;63:33-39