In camels there are a phenomena called "hydro-bursitis", in which fluid is accumulated in the bursa that covered the ovary + occlusion of the bursa on the ovary due to an inflammatory reaction. The result is is a large sac around the ovary. Such fluid sometimes extend to the Fallopian tube. The cause may be the Chlamydia infection. I published three papers related to this area, see attached.

with my best wishes.

A Ali  

Hydrosalpinges may cause no problems and merely be an incidental clinical finding, usually when an ultrasound is performed for another reason. In patients with infertility, surgery to remove hydrosalpinges results in improved pregnancy outcomes in selected patients with severe damage to their tubes. In terms of risks, the main one is infection through seeding of bacteria via haematogenous or ascending spread and the development of acute salpingitis. There are rare case reports of malignancy arising in hydrosalpinges, and there is now a general recommendation that if a hysterectomy is performed then elective excision of the tubes should be considered to lower the risk of subsequent ovarian/epithelial cancer at a population level. However, most cases of hydrosalpinges are assymptomatic and benign, although there are no large observational studies (except for IVF settings) to confirm this. In the absence of symptoms, and if other operative risk factors are present, an observational approach is a reasonable clinical option for a patient to consider.

A cautionary tale:

Eur J Gynaecol Oncol. 2004;25(3):389-90.

Microscopic endometrioid carcinoma arising in endosalpingeal endometriosis.

Karateke A1, Kir G, Gurbuz A, Aker F.

Abstract

We present a case of microscopic adenocarcinoma arising in the right fallopian tube, which was incidentally found in 74-year-old woman undergoing total abdominal hysterectomy with salpingo-oophorectomy for uterine myoma, hematometra and bilateral hydrosalpinx. A small focus of endometrioid adenocarcinoma confined within the endosalpingeal mucosa of the right fallopian tube associated with endometriosis was fortuitously found during histological examination. Our case seems to be unique since it shows an evident filiation between the lesions of tubal endometriosis and an adjoining focus of microscopic carcinoma. This is the second case report of a microscopic endometrioid carcinoma associated with endosalpingeal endometriosis.

http://www.ncbi.nlm.nih.gov/pubmed/15171328

The long term risk of persistent hydrosalpinx is, as of yet, undefined. In BRCA patients, persistent hydrosalpinx would be an indication for removal.  There is a growing body of literature that many ovarian cancers have their origins in the tube. The link between chronic tubal disease and cancer, however, is another story.

Thanks a lot. It's very usefull for me

Regards