IntroductionFemoral nerve compression due to a cystic lesion around the hip joint is rare and only a few cases have been described in the literature. Among these, true ganglion cysts are even more rare.Case presentationWe report the case of a 57-year-old woman with femoral nerve compression caused by a true ganglion cyst of the hip joint.ConclusionA high index of suspicion is required to predict a non-palpable cystic lesion around the hip joint as it may mimic different disorders and should be kept in mind in the differential diagnosis of unusual groin pain, radicular pain and peripheral vascular disorders.