We report a rare case of a dorsal synovial ganglion of the left hip causing L5 radiculopathy in a 48-year-old woman. After a 12-month history of intermittent pain in the groin, left buttock, and left lower limb, magnetic resonance imaging (MRI) of the pelvis revealed a 10-cm-long cystic ganglion. The lesion originated from the posterior aspect of the hip joint capsule and extended through the sciatic notch toward the L5 nerve root, causing severe nerve compression. Open resection of the ganglion via surgical hip subluxation was performed.Conclusion:
Combined presentation of symptoms attributable to intrinsic hip disease and peripheral radiculopathy should raise suspicion for a shared cause of these entities.