The pathological types of chronic salpingo-ovarian inflammation can be roughly divided into four types: hydrosalpinx, pyosalpinx, adnexal mass, and interstitial salpingitis.
1. Hydrosalpinx and salpingo-ovarian cyst:Hydrosalpinx is caused by the closure of the ostium of the fallopian tube due to endometritis, and the accumulation of exudate in the lumen. Some are hydrosalpinges, and some become hydrosalpinx after the absorption and liquefaction of the pus for a long time, showing a serous state. If it is originally a salpingo-ovarian abscess, it forms a salpingo-ovarian cyst (hydrosalpinx).
In addition, sometimes, due to periphery ovarian inflammation, the follicle rupture is blocked and forms a follicular cyst, or bacteria enter during the rupture of the follicle, forming inflammatory effusion, and then it connects with the hydrosalpinx to form a salpingo-ovarian cyst. Hydrosalpinx is usually not very large, less than 15 cm in diameter, like hydrosalpinx,呈曲颈瓶状. The diameter of the salpingo-ovarian hydrosalpinx can reach about 10-20 cm. Both are seen in cases with inflammation for many years without recurrence. The surface is smooth, and the tube wall becomes thin and transparent due to expansion. Hydrosalpinx usually has delicate membranous strands adherent to the pelvic peritoneum, but some are free. Due to the heavier distal expansion, occasionally, the proximal (isthmus) is the axis, and the hydrosalpinx twists, which is more common on the right side.
Hydrosalpinx is often bilateral. Sometimes, the uterine end is only loosely occluded, so when performing hysterosalpingography, X-ray fluoroscopy or film can show typical hydrosalpinx images; a few cases report occasional sudden large or intermittent small amounts of fluid discharged from the vagina, which may be due to increased intracavitary pressure of the hydrosalpinx, causing the fluid to be discharged from the loosely occluded orifice of the fallopian tube. After a large amount of vaginal discharge, pelvic examination can reveal the disappearance of the original mass.
2. Hydrosalpinx and salpingo-ovarian abscess:If the hydrosalpinx does not subside for a long time, it can have recurrent acute attacks. Especially when closely connected with the intestinal tract in the pelvis, Escherichia coli can infiltrate and cause secondary mixed infection. When the body's resistance is weakened, the residual hydrosalpinx can also be stimulated by external factors. If the patient is too tired, has sexual activity, gynecological examination, etc., and has an acute attack. Recurrence can also occur before and after menstruation due to local congestion.
Due to repeated attacks, the fallopian tube wall becomes highly fibrotic and thickened, and adheres to adjacent organs (uterus, posterior leaf of the broad ligament, sigmoid colon, small intestine, rectum, pelvic floor, or pelvic lateral wall). If stable after treatment, pus can become increasingly thick and gradually replaced by granulation tissue, occasionally calcification or cholesterol stones can be found.
3. Adnexal mass:Chronic salpingo-ovarian inflammation can present as inflammatory fibrosis hyperplasia, forming relatively solid inflammatory masses. Generally smaller, if they are adherent to the intestinal tract, omentum, uterus, pelvic peritoneum, bladder, etc., they can form a large mass. The mass can also form after pelvic inflammatory surgery. At this time, the retained organs, such as the ovary or part of the fallopian tube, pelvic connective tissue, or the remnant of the uterus, are at the center, and the intestinal tract, omentum, etc., are adherent to them. If it has become a chronic inflammatory mass, it is relatively difficult to completely resolve the inflammation or make the mass disappear.
4, Chronic interstitial salpingitis:It is a chronic inflammatory lesion left by acute interstitial salpingitis, often coexisting with chronic ovarian inflammation. Bilateral fallopian tube thickening and fibrosis can be seen, and small abscesses may remain in the muscular layer and subperitoneum. Clinical manifestations include thickening or string-like thickening of the adnexa. Microscopic examination shows widespread infiltration of lymphocytes and plasma cells in all layers of the fallopian tube.
It is a chronic inflammatory lesion left by acute interstitial salpingitis, often coexisting with chronic ovarian inflammation. Bilateral fallopian tube thickening and fibrosis can be seen, and small abscesses may remain in the muscular layer and subperitoneum. Clinical manifestations include thickening or string-like thickening of the adnexa. Microscopic examination shows widespread infiltration of lymphocytes and plasma cells in all layers of the fallopian tube.