An American text-book of genito-urinary diseases, syphilis and diseases of the skin . ime totime, at one time being acid, at another alkaline. Owing to this alternationof layers a laminated appearance is often presentedupon section of a stone : a section will show, for ex-ample, a layer of uric acid, then of urates, then ofphosphates, the latter being deposited under the in-fluence of the alkaline decomposition of the urine inthe bladder; if the urine becomes clear and acidagain, as it often does, especially in the earlier stagesof the malady, another layer of uric acid will beformed outside o
An American text-book of genito-urinary diseases, syphilis and diseases of the skin . ime totime, at one time being acid, at another alkaline. Owing to this alternationof layers a laminated appearance is often presentedupon section of a stone : a section will show, for ex-ample, a layer of uric acid, then of urates, then ofphosphates, the latter being deposited under the in-fluence of the alkaline decomposition of the urine inthe bladder; if the urine becomes clear and acidagain, as it often does, especially in the earlier stagesof the malady, another layer of uric acid will beformed outside of the phosphatic one. Figs. 116 and117, from Ultzmann, illustrate these formations well. One plausible explanation of these periodic returnsof the bladder to a healthier condition with the accom-panying changes in the urine is to be found in thefact that the phosphatic layer deposited while theurine is alkaline is smoother than the one previouslyformed, and therefore less irritating to the mucous membrane. This alternation of chemically different layers is also due to the periodic. Fig. 116.—Laminated ap-pearance of stone from thedeposit of alternate layers(lltzmann).
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Keywords: ., bookcentury1800, bookdecade1890, booksubject, booksubjectsyphilis
