A young woman who presented to orthopedic department with referred back pain, hyper calcemic symptoms was worked up and found to be having ovarian mass .Small Cell Carcinoma of ovary hypercalcemic type is a highly malignant and prognostically poor tumor unique to the ovary. It is an undifferentiated carcinoma occurring in young patients and associates with hypercalcemia. Tumor morphology reveals sheets of anaplastic small cells with extensive necrosis and hemorrhage. Here we report a case of rare and aggressive histological type of ovarian carcinoma.