Lipoid cell tumors are rare hormone producing ovarian neoplasm. Majority of patients with these tumors are diagnosed at an early stage and unlike common epithelial tumors, these tumors have more specific symptoms due to the production of hormones and are associated with signs of virilism (hirsutism, amenorrhea, changed voice, breast atrophy and clitoromegaly).Reported is a case of patient with sudden virilization caused by the benign androgen-producing lipoid-cell tumor of the ovary, very infrequently described in the literature.