Paralabral cysts are common complications of femoroacetabular impingement, often linked to labral tears from bony lesions.
These cysts can form when synovial fluid leaks through a labral tear, but they usually resolve on their own and rarely cause nerve or blood vessel compression.
This case report discusses a unique instance where a large paralabral cyst compressed the femoral vein, leading to deep vein thrombosis, which was treated with arthroscopic decompression and other interventions.