Objective: The "Terminal Peroneal Window" is a newly described anatomical course and location of the terminal part of the peroneal artery. This important anatomical location has only been recently identified and reported where the terminal part of the peroneal artery changes its anatomical course and position, by surfacing anteriorly and lateral to lie more anteriorly, mostly halfway between the tibia and fibula directly beneath the interosseous membrane, before it gives off its terminal branches. Accessing the terminal peroneal artery at the "terminal peroneal window" with minimal dissection is a unique surgical option for peroneal artery open bypass revascularization in patients with critical leg ischemia. The aim of this study is to assess whether these new findings are consistent in all people, or whether these reported cases were abnormal anatomical variations. Methods: A retrospective analysis of all performed computed tomography (CT) angiography scans of the lower limbs at a single tertiary center in 2019. Inclusion criteria was any scan with a patent peroneal artery. Results: A total of 250 CTA were analyzed. 162 (65%) were males, median age was 68 years (range 12--96). The indications for the CT scans were peripheral vascular disease 111 (44.4%), acute limb ischaemia 38 (15.2%) trauma 53 (21.2%), pseudoaneurysm 11 (4.4%) and other less frequent indications. The anatomical course of the terminal Peroneal artery and the TPW were present in every CT scan. The mean Terminal Peroneal Window size in the right leg was 7.72 mm (range: 2--14 mm) compared to 8.17 mm (range: 3--16 mm) in the left leg. Conclusion: This study demonstrated that the terminal peroneal artery's anatomical course and the Terminal Peroneal Window as originally described was not an anatomical variant, but the norm. A wider study will be required to assess its clinical implications in similar limb salvage procedures or in other subspecialty fields. [ABSTRACT FROM AUTHOR]