What is the difference between adnexal cysts and ovarian cysts?

The main difference between adnexal cysts and ovarian cysts lies in the location, cause and clinical manifestations of the disease. The former generally refers to cystic lesions in the adnexal area (ovary + fallopian tube), while the latter specifically refers to cysts in ovarian tissue.

1. Scope of disease

Adnexal cysts cover fallopian tube effusion, ovarian crown cyst and other non-ovarian origin lesions, which may be accompanied by fallopian tube thickening or hydrops.； Ovarian cysts only occur within the ovarian parenchyma, such as follicular cysts, corpus luteum cysts and other physiological structures, or pathological masses such as serous cystadenoma.

2. Pathogenesis

Ovarian cysts are often related to hormonal cycles, and ovulation disorders may lead to functional cysts； Fallopian tube lesions in adnexal cysts are often related to pelvic inflammatory disease and endometriosis. Pathogen infection can cause congestion and edema of the fallopian tube wall to form cystic expansion.

3. Differences in symptoms

Ovarian cyst rupture can easily cause acute lower abdominal pain and intra-abdominal bleeding； Fallopian tube abscess in an adnexal cyst may cause persistent febrile, purulent leucorrhea. Both can cause pelvic compression symptoms, but ovarian cysts are more likely to cause menstrual disorders.

4. Image characteristics

In ultrasound examination, ovarian cysts are mostly round, single-chambered, echoless, and have smooth walls.； Cysts originating from the fallopian tube are often sausage-shaped multi-locular structures, and there may be fine divisions within the cyst. Enhanced CT showed blurred fat spaces around the adnexal inflammatory cyst.

5. Processing principles

It is recommended to observe ovarian cysts less than 5 cm, and pathological ones need to be removed laparoscopically.； Adnexal abscesses require antibiotic treatment, and ostomy may be considered if hydrosalpinx and infertility occur. All patients with malignant tendencies require rapid intraoperative pathology guidance for surgical selection.

Regular gynecological examinations can detect cystic changes early, and transvaginal ultrasound is the preferred monitoring method. If you experience sudden abdominal pain, abnormal vaginal bleeding, or a cyst that enlarges in a short period of time, you need to seek medical attention promptly and avoid strenuous exercise to prevent the cyst from torsion and rupture. Keep the perineum clean every day. In the acute stage, you can try hot compress to relieve pain, but treatment must be standardized under the guidance of a doctor.