Ovarian Cyst Flashcards
Definition
Fluid-filled sac. Functional overian cysts related to the fluctuating hormones of the menstrual cycle,
Epidemiology
- Premenopausal women (Benign)
- Cysts in postmenopausal women (more likely malignant)
Risk factors
- Age
- Postmenopause
- Increased number of ovulations
- Obesity
- Hormone replacement therapy
- Smoking
- Breastfeeding (protective)
- Family history and BRCA1 and BRCA2 genes
Classic appearance of multiple ovarian cysts
“String of pearls” appearance
Presentation
Majority asymptomatic
Vague symptoms:
- Pelvic pain
- Bloating
- Fullness in the abdomen
- A palpable pelvic mass (particularly with very large cysts such as mucinous cystadenomas)
When may ovarian cysts present with acute pelvic pain
Ovarian torsion
Haemorrhage
Rupture of cyst
Functional cysts
Follicular cysts (MC) = represent the developing follicle
- When these fail to rupture and release the egg, the cyst can persist.
- Harmless and tend to disappear after a few menstrual cycles.
- Typically they have thin walls and no internal structures.
Corpus luteum cysts
Occurs when the corpus luteum fails to break down and instead with fluid. They may cause pelvic discomfort, pain or delayed menstruation.
Seen often in early pregnancy.
Serous cystadenoma
These are benign tumours of the epithelial cells
Mucinous cystadenoma
Benign tumour of the epithelial cells. They can become huge, taking up lots of space in the pelvis and abdomen
Endometrioma
These are lumps of endometrial tissue within the ovary, occurring in patients with endometriosis. They can cause pain and disrupt ovulation.
Dermoid cysts/ Germ cell tumours
- Benign ovarian tumours. - They are teratomas, (come from the germ cells) and may contain various tissue types, such as skin, teeth, hair and bone. They are particularly associated with ovarian torsion.
Sex Cord-Stromal Tumours
- Rare tumours, can be benign or malignant.
- They arise from the stroma (connective tissue) or sex cords (embryonic structures associated with the follicles).
- There are several types, including Sertoli–Leydig cell tumours and granulosa cell tumours.
Signs
Abdominal bloating
Reduce appetite
Early satiety
Weight loss
Urinary symptoms
Pain
Ascites
Lymphadenopathy
More ovulation periods = high risk of ovarian cancer. Which factors reduce the number of ovulations?
- Later onset of periods (menarche)
-Early menopause - Any pregnancies
- Use of the combined contraceptive pill