Identifier: diseasesofinfa00kopl (find matches)
Title: The diseases of infancy and childhood
Year: 1910 (1910s)
Authors: Koplik, Henry, 1858- (from old catalog)
Subjects: Children
Publisher: New York and Philadelphia, Lea & Febiger
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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ngenital origin. They are formed in the second half of intra-uterine life. They are bilateral, only 1 in 60 being unilateral(Lejars). The kidney is made up of greater and smaller cysts.The cystic formations may be present to the entire exclusion ofkidney tissue. The cysts may attain the size of a childs head andseriously obstruct delivery. They are of anatomical interest only,since infants with such cysts present other abnormalities and diesoon after birth. Hydronephrosis. — Hydronephrosis is either congenital or ac-quired. If acquired, it occurs late in childhood. The congenitalform is due to stenosis in some part of the urinary tract. Hydro-nephrosis is as a rule unilateral. If it occurs after birth, it maybe due to obstruction by calculi or to uric acid infarction of the kid-ney. The healthy kidney is physiologically enlarged. The acquiredform is due to obstruction by calculi or to tumors pressing on theureters. At first the pelvis of the kidney, then its tissue is en- PLATE XXXV
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Sarcoma of the Kidney. Child six years of ageIrregular contour of the abdominal tumor. DISEASES OF TEE KIDNEY. 785 eroached upon in the gradual dilatation. Finally the shape of thekidney is lost. There is a large fluctuating tumor which in ay ormay not be painful. When punctured, a fluid of low specific gravityis withdrawn which contains albumin, epithelium, urea, uric acid.In some cases there occurs what is known as intermittent hydro-nephrosis. The contents of the tumor are emptied spontaneously,but reaccumulate. The diagnosis rests on the presence of a fluctuat-ing tumor containing a fluid, with urine constituents. Cystoscopymay in some cases reveal obstruction of the ureters. Cysts must anatomically be differentiated from the condition ofhydronephrosis. Cysts are new growths (Senator) ; in that respectthey differ from the cystic condition of hydronephrosis. It is notpossible clinically to differentiate congenital cysts of the kidney fromcongenital hydronephrosis. Sarcoma of the Ki

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