Follicular cyst of ovary
|Follicular cyst of ovary|
|Classification and external resources|
This type can form when ovulation doesn't occur, and a follicle doesn't rupture or release its egg but instead grows until it becomes a cyst, or when a mature follicle involutes (collapses on itself). It usually forms during ovulation, and can grow to about 7cm in diameter. It is thin-walled, lined by one or more layers of granulosa cell, and filled with clear fluid.
Its rupture can create sharp, severe pain on the side of the ovary on which the cyst appears. This sharp pain (sometimes called mittelschmerz) occurs in the middle of the menstrual cycle, during ovulation. About a fourth of women with this type of cyst experience pain.(citation needed)
Usually, these cysts produce no symptoms and disappear by themselves within a few months.
Ultrasound is the primary tool used to document the follicular cyst. A pelvic exam will also aid in the diagnosis if the cyst is large enough to be seen. A doctor monitors these to make sure they disappear, and looks at treatment options if they do not.
- Functional ovarian cysts at Cancer Research UK. Retrieved July 2012
- "Follicular cyst of the ovary definition". MedTerms.
- "Ovarian Cysts". The Institute for Female Alternative Medicine..
- "Ovarian cysts". Mayo Clinic.