[The characteristics of ureteral lithiasis].

The study covers 2630 patients with ureteral concrements, eliminated operatively, through extracorporeal lithotripsy (ESWL), or spontaneously as the result of drug treatment. Attention is called to the left-side location of ureteral concrements, regardless of the mode of elimination, with the clinical symptomatology of the disease being comprehensively discussed. Clinical and chemical characterization of ureteral concrements (type, size and the like) is also done separately with a special reference to the method of removal employed.

[The surgical and spontaneous elimination of kidney calculi--the type, incidence and treatment].

Results are reported of chemical (derivatographic and polarization microscopic) analysis of 2630 calculi removed by operation and 8607 spontaneously eliminated calculi. It was found that 82.7 per cent of the calculi removed by operation and 19.