Primary leiomyosarcoma of the broad ligament is an extremely rare tumor with very few cases reported in literature. We herein report a case of postmenopausal lady, diagnosed pre-operatively on ultrasound and CT as a degenerated fibroid/ ovarian tumor. Post operatively histopathological diagnosis proved to be a leiomyosarcoma. The patient was treated with adjuvant radiotherapy with a dose schedule of 50 Gy in 25 fractions over 5 weeks. Patient is on monthly follow up since 6 months with no complaints