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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
Ca prostate most common metastasis to
assistant
The correct answer is  Answer- C. Lumbar spineMost common metastatic sites of prostate carcinoma are lymph nodes & bones.Lymphatic metastasis occurs most commonly to - obturator lymph nodes.Most common site of bony metastasis is lumbar spine.