An Unusual Case of Pulsatile Leg Swelling: The Lesson Learned

Pulsatile swellings in the leg are uncommon. Almost all the reported cases in the literature are due to the result of an arterial wall injury, presenting as either pseudoaneurysm or aneurysm. A small number of arteriovenous fistula, vascular malformation, and vascular tumors have also been reported. We report a rare case of pulsating skeletal muscle metastasis from renal cell carcinoma, mimicking as an anterior tibial artery aneurysm. The aim of presenting this case is to highlight the importance of detailed clinical history and need for imaging modalities and to keep the possibility of even remote causes in the initial workup.