A 26 year old women comes to doctor because of tremors, weight loss and discomfort on warm days. Her temp is 37.2 and pulse is 78 resp 12 BP 130/76. Physical exam shows palpable abdo mass. No opthlamopathy no neck masses. Labs show leukocyte 8000, hemoglobin 14, platelets 250000. TSH is 0.1 thyroxine is 38. US of abdo shows 5 cm left adnexal cystic mass. 1. What is most likely underlying condition and why?

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The development of the reproductive system begins with the formation of undifferentiated gonads and the paired mesonephric and paramesonephric ducts.


1. A 26 year old women comes to doctor because of tremors, weight loss and discomfort on warm days. Her temp is 37.2 and pulse is 78 resp 12 BP 130/76. Physical exam shows palpable abdo mass. No opthlamopathy no neck masses. Labs show leukocyte 8000, hemoglobin 14, platelets 250000. TSH is 0.1 thyroxine is 38. US of abdo shows 5 cm left adnexal cystic mass. 1. What is most likely underlying condition and why?