Unusual Presentation of Groin Sarcoma Involving the Common Femoral Artery: A Case Report

Sarcomas are characterized by innumerable clinical presentations. Sarcoma tumors involving peripheral vessels are quite rare and not always easy to identify despite the availability of diagnostic tools such as sonography, computed tomography (CT), and magnetic resonance imaging (MRI). This case report discusses the imaging findings of angiography, sonography, and CT, which were the modalities used in this case. Initially, the patient underwent limited duplex ultrasound and CT imaging to evaluate a painful right groin area after right common femoral artery (CFA) angioplasty and laser atherectomy, with left groin access. Sonographic findings demonstrated a large, heterogenous, hypoechoic, and avascular mass surrounding the right CFA. CT imaging of the pelvis described a partially thrombosed pseudoaneurysm surrounding the CFA. Surgical evacuation of what was believed to be a hematoma was performed; a pathology report revealed sarcoma of the groin