Case Report: A 46-Year-Old Man With Giant Pseudoaneurysm of the Left Superficial Femoral Artery

Introduction: Pseudoaneurysm is a complication caused by vascular injury, which is more common in firearm injuries, stab wounds, iatrogenic injuries, etc. Clinically, femoral pseudo-artery caused by intravenous drug abuse is not uncommon, but giant pseudoaneurysms are relatively rare. Case presentation: A 46-year-old man presented with a 6-month history of a pulsating mass in the left groin, which was aggravated with pain for 3 days. The patient has a history of intravenous drug use for more than half a year. Six months ago, the patient found a lump in the left groin, and no special treatment was given.Three days ago, the mass in the patient's left groin suddenly enlarged with severe pain. The patient then came to our hospital for treatment, and ultrasound revealed a pseudoaneurysm in the left femoral artery.CTA of the lower extremity arteries suggested a huge pseudoaneurysm in the left femoral artery. To avoid the rupture of the huge pseudoaneurysm of the left superficial femoral artery, we implemented emergency interventional surgery. The operation was successful and the patient recovered well after the operation.Conclusions: In order to avoid the rupture of a huge pseudoaneurysm of the femoral artery, emergency interventional surgery is an option. However, considering that pseudoaneurysms caused by intravenous drug abuse are often associated with fungal infections, surgery is still the best choice.