An American text-book of genito-urinary diseases, syphilis and diseases of the skin . numerous bladder has been opened in front, and the prostate divided from the roof of the urethradirectly upward. A and B represent the cut surfaces of the prostate, widely separated, showingthe tension that existed; between these is the floor of the urethra; C, enlarged median lobe; D<numerous vesical calculi; behiud the middle lobe a nest of these is seen. CHANGES IN URETHRA AND NECK OF BLADDER. 277 sluggish venous return. In this condition the mucous membrane offers butslight resistance to mi
An American text-book of genito-urinary diseases, syphilis and diseases of the skin . numerous bladder has been opened in front, and the prostate divided from the roof of the urethradirectly upward. A and B represent the cut surfaces of the prostate, widely separated, showingthe tension that existed; between these is the floor of the urethra; C, enlarged median lobe; D<numerous vesical calculi; behiud the middle lobe a nest of these is seen. CHANGES IN URETHRA AND NECK OF BLADDER. 277 sluggish venous return. In this condition the mucous membrane offers butslight resistance to microbic invasion. The presence of pathogenic microbesin the bladder frequently depends upon the introduction of instruments thathave not been surgically clean, or the germs may have been carried in byfailing to cleanse the anterior urethra before the instrument was develops, however, independently of these causes. The infectionmay be conveyed by way of the urethral mucous membrane apart frominstrumentation, or may gain access, as claimed by some authors, through. Fig. 76.—.4, very large median lobe ; B, floor of urethra (verumontanum).masses. (Original.) No enlargement of the lateral the kidneys, or, as shown by others, directly through the walls of the rectumand bladder. According to the researches of Clado and Albarran, septiccystitis almost invariably depends upon the bacterium pyogenes. This issaid to be identical with the bacillus coli communis. As a result of the irri-tating properties of the germs themselves or their ptomaines an intenseinflammation of the vesical mucous membrane is caused. The urea is decom-posed and ammonia is set free, which acts as a further irritant. The important change produced in the bladder from the standpoint of the 278 DISEASES OF THE PBOSTA TE. surgeon is the loss of power to evacuate its contents even when the mechanicalobstruction is relieved. This may be due to over-distention, sacculation, ormore commonly to crippling
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Keywords: ., bookcentury1800, bookdecade1890, booksubject, booksubjectsyphilis
