A Bartholin cyst is a fluid-filled swelling near the vaginal opening caused by blockage of a Bartholin gland.
The main symptom is a lump on one side near the vaginal opening. It may be painless at first, but a larger cyst can cause discomfort when walking, sitting, or having sex.
Imaging helps when the swelling is deep, unusual, repeatedly recurring, or the diagnosis is not clear on examination.
Imaging is not always needed, but ultrasound can help if the swelling is unusual, deep, or the diagnosis is uncertain.
Management may include observation, drainage, treatment of infection, or gynecology review depending on symptoms.
This entry explains the finding. The next step is having a radiologist interpret your specific scan, not a general definition.