What are causes of adnexal tumors ?

Women normally have 2 ovaries that store and release eggs. Each ovary is about the size of a walnut, and 1 ovary is located on each side of the uterus. One ovary produces an egg each month, and this process starts a woman's monthly menstrual cycle. The egg is enclosed in a sac called a follicle. An egg grows inside the ovary until estrogen, a hormone, signals the uterus to prepare itself for the egg. In turn, the uterus begins to thicken itself and prepare for pregnancy. This cycle occurs each month and usually ends when the egg goes unfertilized. All contents of the uterus are then expelled if the egg is not fertilized. This is called a menstrual period.
The ovarian tumours are the most common cause of adnexal tumours

They are broadly of two different types

• OVARIAN CYSTS
  
• OVARIAN TUMORS