Endometrioma

Su
Today I went in for a follow up ultrasound regarding a cyst on my right ovary. My doctor called me back to inform me that it is an Endometrioma and it has engulfed my right ovary. He stated that he will have a nurse call me to schedule the surgery and answer any of my questions. Well I haven't received a call yet and I have a ton of questions. 
Anyone had this before? I'd like to hear stories!!