Granulosa cell tumours are relatively rare ovarian tumors. The incidence was 0.9 cases per 100,000 women per year. We describe a quite uncommon granulosa tumour found in the broad ligament. The patient was a 25-year-old, white woman, gravida 4, para 2. Surgical treatment was tumourectomy with homolateral salpingo-oophorectomy. From this observation, embryology, clinical and paraclinical aspects, treatment and prognosis of these tumours are reviewed.