MALIGNANT OVARIAN GERM CELL TUMOURS (MOGCT); SURVIVAL OUTCOMES FROM A SINGLE INSTITUTION IN PAKISTAN
Abstract
Objectives: Malignant ovarian germ cell tumours (MOGCTs) are rare, but aggressive tumours seen mostly in young women or adolescent girls. The aim of our study was to evaluate the survival outcomes of MOGCT patients treated at Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore, Pakistan.
Materials and Methods: One hundred and nine females were retrospectively identi ed through hospital information system with MOGCT from 2007 to 2013. Histology was based on the WHO classi cation. Tumours were staged according to the Federation of Gynaecology and Obstetrics staging system. Overall survival (OS) and disease-free survival (DFS) were determined by the Kaplan–Meier method. All patients were included in the study. Patient who had been lost to follow-up was contacted through telephone.
Results: Mean presenting age was 20 years (range 4–54). 38% of patients had Stage I, 7% had Stage II, 25% had Stage III and 30% of patients had Stage IV disease. Based on histology, 42% had dysgerminoma, 25% had mixed germ cell tumours, 18% had yolk sac tumour, 13% had teratoma and 2% had embryonal carcinoma. Median follow-up time was 41 months. All patients underwent initial surgery, of which 86 (79%) had fertility-preserving surgery. 91 (84%) patients received adjuvant chemotherapy and 18 (16%) were kept on surveillance. The chemotherapy regimen used was a combination of bleomycin, etoposide and cisplatin. 89 patients had a complete remission, 14 had partial response and one had progressive disease. Five patients had relapsed disease, four distant and one local. The 5 year OS was 91% and DFS was 88%.
Conclusion: MOGCTs have a good prognosis. Fertility-sparing surgery was possible in the majority of cases. BEP regimen has excellent activity and acceptable toxicity in patients with MOGCT.
Key words: Disease-free survival, malignant ovarian germ cell tumours, overall survival
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