This article by Marcelo Gomes,MD, and Steven Deitcher, MD,is a well conducted, thorough,and scholarly review of the diagnosticmethods for venous thromboembolismin cancer patients. The authorshave specifically looked at upperandlower-extremity deep venousthrombosis (DVT), pulmonary embolism,and rarer conditions includingthrombosis of the inferior venacava (IVC), pelvic veins, and eventhe portal vein. They offer descriptionsof the various tests available,address the pros and cons of thosetests, and provide the reader with algorithmsfor the diagnosis of DVT andpulmonary embolism, including twofor pulmonary embolism-one basedon ventilation/perfusion (V/Q) scanningand one based on helical computedtomography (CT) scanning.