Venous thrombosis related to duplicated inferior vena cava: A case report and systematic review.

Rationale: Swollen legs are commonly observed in clinical practice, and deep vein thrombosis (DVT) is 1 of the causes. Duplicated IVC (DIVC) is a relatively rare anomaly that results in DVT.

Patient Concerns: A 52-year-old male patient presented to the emergency department because of right leg swelling, pain, and redness for 3 days.