A 12 years old female is admitted as a patient of dysgerminoma of right ovary 4 x 5 cm in size with intact capsule. Best treatment will be:

Though Dysgerminoma is most radiosensitive tumour known, treatment of choice is oophorectomy of involved side followed by cisplatin based chemotherapy to preserve fertility, as dysgerminoma is seen in young women with average age incidence being 20 years. BEP: Bleomycin, Etoposide, Cisplatin