Case summary A 25-year-old woman presented with a 6-month history of abdominal distention and a progressive increasing palpa- ble mass in the lower abdominal quadrants. At the time of admission, the size of the mass was equivalent to the swelling in a 6-month-pregnant woman. Her personal and familial medical history was unremarkable. Her physical examination revealed a firm, smooth, and painless palpable mass in the right lower quadrant. Ultrasonography revealed a solid right adnexal mass of 11× 10cm accompanied by mild hydronephro- sis on the right side. The left ovary and uterus appeared normal. Subsequent computed tomography revealed a pelvic mass with a diameter of 11 ×10×12cm characterized by an indistinct border between the uterus and pelvic sidewalls. There was also evidence of right ureteral dis- placement. Laboratory tests measuring alpha-fetoprotein, carcinoembryonic antigen, and cancer antigen 125 (CA125) levels did not reveal any abnormal results but LDH was high Following the diagnosis of a right ovarian mass, the patient underwent surgical exploration via laparotomy. Consequently, a 10 by 11 cm right ovarian mass with external projections, moderate ascites, and omental deposits were observed intraoperatively The re- mainder of the abdominal cavity appeared normal, and ascitic fluid was sampled for cytological examination. Intraoperative cytological frozen analysis of the tumor revealed malignant cells of the germinal nature. Right salpingo-oophorectomy with infracolic omentectomy was performed for mass excision, and a biopsy was taken from the left ovary, which appeared more prominent than average. Excision of all tumoral im- plants, pelvic and para-aortic lymph node dissection. The patient received a total of 4 units of transfused erythrocytes, 2intraop- eratively and 2 postoperatively, with no postoperative complications. She was discharged on the fifth day after surgery .The final histopathological examination revealed a pure dysgerminoma with multiple lymph node involvement and omental metastases Accordingly, she was diagnosed with the International Federation of Obstetrics and Gynecology (FIGO) 3AMOGCT, indicating that the cancer has spread to the serosa of the uterus and/or the tissue of the fallopian tubes and ovaries but not to other parts of the body. Subsequently, BEP (Bleomycin 30units per week, Etoposide 100mg/m2 / day and cisplatin 20mg/m2 /day daily for Days 1–5) chem- otherapy was administered at 3-week intervals, starting from the 3rd postoperative week. She provided a complete clinical and radiological response after four cycles of BEP. She was followed up semi-annually during the first year and then annually for the next 5years with no signs of recurrence.patient then experienced 4 consecutive uneventful pregnancies in 7 yrs and also underwent postpartum tubal ligation at our hospital This is the methodology and case summary kindly give me poster for my rcog. Conferance

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