Introduction/Background Adult-type granulosa cell tumor (GCT) is a rare subtype of ovarian cancer. It derlves from sex cord stromal cells of the ovary. The incidence of GCTs is 0.6–0.8/100,000, and it represents 3–5% of all ovarian malignancies.

Methodology a retrospective study concerning 40 cases of ovarian sex cord-stromal tumors (OSCST). Among them, we collected 17 cases of GCT. Epidemiological, clinical and radiological data were analyzed in this study.

Results GCT represented 42.5% of the OSCSTs and 1.15% of all ovarian tumors during the study period. The average age was 42.3 years . The mean parity of patients was 4. Menopausal average age calculated at 49 years . In 80% of cases patients were symptomatic; chronic pelvic pain 43.5%, meno-metrorrhagia 36.5%. For Three patients the tumor was discovered by chance: one during a caesarean scare and two during an ultrasonography for infertility. Physical exam revealed a palpable mass in 9 cases (52.9%). with an average size of 8 cm, and a solid consistency. On ultrasonography, we found a compartmentalized cystic tumor with vascularized partitions in color and pulse Doppler in 71.42% of cases . An effusion in the douglas has been described in 35.71% .The ultrasound study must incorporate the endometrium, in our study, the endometrium was hyperplastic in two cases. In CT we found a predominant cystic forms (53%) with variable contents .In MRI, in75% of cases we found a hyposignal with T2 weighting with a multilocular cystic appearance with solid components.

Conclusion The variability in the histological type globally and in the cellular arrangement particularly of granulosa tumors has helped to create a spectrum of radiological manifestations, whose good assimilation of their semiology will make it easier to pose the diagnosis before the surgery.