An American text-book of the diseases of children .. . equent sediments are uric acid, which are often foundin the shape of red sand in the very first urinary discharges of the new-born LiriiiAsis. 979 infant. Calculi mav form, consisting of pure uric acid or its compounds, butthe? are seldom Urge. Less common arc small stones of pine oxalate of commonh large stones consist of nuclei of uric acid or oxalate of lime,around winch phosphates are deposited in concentric layers. Phosphates rarelyform the nuclei of stones. The alkaline reaction of urine, which is necessary to the deposit o
An American text-book of the diseases of children .. . equent sediments are uric acid, which are often foundin the shape of red sand in the very first urinary discharges of the new-born LiriiiAsis. 979 infant. Calculi mav form, consisting of pure uric acid or its compounds, butthe? are seldom Urge. Less common arc small stones of pine oxalate of commonh large stones consist of nuclei of uric acid or oxalate of lime,around winch phosphates are deposited in concentric layers. Phosphates rarelyform the nuclei of stones. The alkaline reaction of urine, which is necessary to the deposit of phosphate-, is not common in children fed 00 milk. It isnot until vegetable Bubstanees are added n> the diet that the alkaline reactionbecomes conspicuous. More frequently the alkalinity necessary to the pre-cipitation o[ phosphates ia th« consequence of organic matter generated ininflammatory processes, especially those excited by calculi themselves. Thisoccurs as soon as thev reach a sufficient size to act as irritants producing local Fig. Calculi impacted in the Ureters. From a boy of 5 years (Tyson). inflammation. They thus become surrounded by alkaline urine, whence phos-phates are deposited in concentric layers around the uric-acid or oxalate-of-lime nucleus. It has been said that calculi may form in any part of the urinary they may be found imbedded in the kidney, circumscribed and encap-sulated in the centre of the organ. Thus situated, they may grow by accretionuntil they have almost destroyed the entire organ, filling up its pelvis and cal-yces, converting the entire kidney into a pus-sac ; or they may even make theirway through the capsule of the kidney into the perinephric tissues, and thence 980 AMERICAN TEXT-BOOK OF DISEASES OF CHILDREN. down into the pelvic cavity. Appended is a drawing of a remarkable specimenoccurring in the practice of the writer in a boy of five years, twice success-fully operated upon for stone in the bladder, the first
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Keywords: ., bookcentury1800, bookdecade189, booksubjectchildren, bookyear1895
