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Mary is a 53yo lady who comes to see you in your office, complaining light spotting lasting for 3 days last month. When you enquire further, you find out that her last normal menstrual period was 19 months ago. The bleeding is not heavy and there is no associated cramping. Her last PAP 18 months ago was reported as normal. She has no other symptoms. 

She also has mild diabetes and hypertension. 

Based on what you have so far, click on the possible diagnoses. 

(Only click on those possibilities that you believe are credible, starting with the most likely. Do not just click on an option to see what is there.)