An American text-book of genito-urinary diseases, syphilis and diseases of the skin . Fig. 194.—Horseshoe kidney (Specimen 3137, Mu-seum N. Y. Hosp.). A BNOBMA LITIES. 547 The failure of development of the kidney is of great surgical import-ance ; and that such cases do occur should constantly be borne in mind inconsidering any operation upon this organ, but especially in connection withnephrectomy. The horseshoe- or disk-shaped kidney naturally falls into the group ofsingle kidneys, but has already been described, so that we include only thoseinstances of kidney without a fellow or with an as
An American text-book of genito-urinary diseases, syphilis and diseases of the skin . Fig. 194.—Horseshoe kidney (Specimen 3137, Mu-seum N. Y. Hosp.). A BNOBMA LITIES. 547 The failure of development of the kidney is of great surgical import-ance ; and that such cases do occur should constantly be borne in mind inconsidering any operation upon this organ, but especially in connection withnephrectomy. The horseshoe- or disk-shaped kidney naturally falls into the group ofsingle kidneys, but has already been described, so that we include only thoseinstances of kidney without a fellow or with an associated organ of rudi-mentary development and incapable of performing renal functions. The absence of one or other of the kidneys has been frequently observed,although the proportion of such cases is exceedingly small—1 in 3992|-(Morris). In these cases, however, the functions of the kidneys are carriedon perfectly well by the kidney present, which is then usually Fig. 195.—Two kidneys blended and occupying a median position: A, aorta; VC, vena cava; VA,vena adiposa: UV, renal vein; SlAScV, spermatic artery and vein; 1A&V, iliac artery and vein; U,ureters ; V, iliac vein (after Haller). As to the relative frequency with which the right or left kidney is absentor rudimentary, Beumers1 statistics show that among 48 cases the rightkidney was absent 22 times, the left 21 times, while one or other was rudi-mentary in 4; 1 not stated. The causation of this condition has generally been ascribed to interferencewith the development of the Wolffian body ; and the quite frequent associa-tion of absence of the kidney with absence or maldevelopment of other partsof the genito-urinary tract of the same side tends to support this view, as ofthe testis or ovary and of the uterus or seminal vesicle. The rudimentary development of one of the kidneys depends obviouslyupon a lesser degree of the same interference with the growth of the Wolffianbody that prod
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Keywords: ., bookcentury1800, bookdecade1890, booksubject, booksubjectsyphilis
