Thank you, chiang mai, for the information. It was really helpful. Thank you as well, Sheryl; I completely understand what you mean, and I appreciate the detailed explanation. My family doctor reviewed the ultrasound and recommended that I get a biopsy within the next few weeks. Since I don't have enough time to do it in my country, I’ve decided to have it done in Thailand, as I’ll be arriving there in a couple of days. Thanks again to you both; I really appreciate the help