The lateral bladder pillars contain blood vessels, vesical veins
(inferior, superior), cervical terminal branches from the uterine artery, and connective tissue from the cardinal ligament.
As part of the same study, slaughterhouse examination of 15 cattle from regions where Bulinus snails had been discovered revealed adult Schistosoma in the mesenteric and vesical veins
, as well as in the liver and the portal system.
Schistosomiasis is a rare cause of tubal disease that could result in ectopic pregnancy, infection occurs when the Schistosoma larvae (cercariae) penetrate the skin following their release by fresh water snails; after maturing into adult forms in the lungs; the latter get carried by the blood to the splanchnic or vesical veins
. Schistosoma mansoni is known to affect the intestine; though there has been a report of S.