Incidental Finding of a Popliteal Artery Aneurysm Identified by Duplex Ultrasonography During Deep Vein Thrombosis Screening

Here, we describe a 78-year-old man in whom a right popliteal artery aneurysm (PAA) was detected incidentally during duplex ultrasonography screening for deep venous thrombus before surgery for prostate cancer. He underwent PAA repair while asymptomatic. In our institution, 2,264 patients underwent screening for deep venous thrombosis due to abnormal circulating D-dimer concentrations before surgery under general anesthesia between 2019 and 2023. Because PAA is a rare disease and its diagnosis before the onset of limb-threatening complications is beneficial for patients, it is necessary to share such findings with colleagues even when screening for diseases other than PAA.