Search results for "Stone formation"
showing 3 items of 3 documents
Intrauterine device migration into the bladder with stone formation after radiochemotherapy for cervical cancer: a case report
2020
Intrauterine contraceptive device (IUD) is one of the most frequently used contraceptive methods in the world. It is considered a safe and effective method of contraception. However, uterine perfor...
Large Fibres in Urinary Calculi—-Promoters of Stone Formation
1988
Large fibres (phi 10-20 microns, length up to 5,000 microns) are sometimes imbedded in urinary calculi. It may be that these fibres can catch sediment particles and promote stone growth. By scanning electron microscopy the morphology of the fibres was studied as well as the relationship of the fibres with crystalline stone components. The reported findings suggest that the fibres are possibly formed in the tubuli as the result of an hitherto unknown defect.
Urolithiasis Following Portacaval Shunt in Rats
1987
A reliable technique for a portacaval anastomosis (PCA) in rats was first published by Lee and Fisher 1961. Since then the biological and biochemical consequences have been studied extensively in numerous investigations. The occurrence of a urolithiasis following PCA was first reported by Herz et al. 1972. Disturbances of uric acid metabolism that were caused by the shunt were thought to be responsible. They should lead to an increased production of endogenous uric acid and thus to hyperuricosuria. Investigations that were published since then mainly focused on chemical stone analysis (Bichler et al. 1974; Rasenack et al. 1977; Wallace et al. 1984).