system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A middle aged woman presented to the OPD with dull abdominal pain for 6 months. CT scan of pelvis showed a 7cm mass involving left ovary with irregular calcifications. The right fallopian tube & ovary are excised. What is the likely diagnosis?
assistant
The correct answer is  .