. The elements of pathological histology with special reference to practical methods . Beneath the diphtheritic deposits the mucous membraneshows cellular infiltration {C), and sometimes also extravasations ofblood {a). In the chronic forms of cystitis the lymphoid nodules normallyexisting in the mucous membrane may enlarge and multiply, and afurther result, especially where there is obstruction to micturition,may be hypertrophy of the mascularis, and subsequently also forma-tion of diverticula, which may either remain simple, or may acquiresecondary bulgings in their floor (Fig. 150, d). The
. The elements of pathological histology with special reference to practical methods . Beneath the diphtheritic deposits the mucous membraneshows cellular infiltration {C), and sometimes also extravasations ofblood {a). In the chronic forms of cystitis the lymphoid nodules normallyexisting in the mucous membrane may enlarge and multiply, and afurther result, especially where there is obstruction to micturition,may be hypertrophy of the mascularis, and subsequently also forma-tion of diverticula, which may either remain simple, or may acquiresecondary bulgings in their floor (Fig. 150, d). The mucous GONORRHCEAL URETHRITIS 307 membrane in the area of the diverticulum shows inflammatory changesthe same as (or even still more intense than) that elsewhere. The most frequent of the inflammations of the urethra is thatcaused by the Gonococcus {gonorrhoea). This may also spread toperhaps all the other parts of the urinary discharging apparatus, aswell as to the vas deferens and the epididymis, and possibly mayeven cause metastases in the joints, The histological changes in the. CL Fig. 151.—Diphtheritic Cystitis, x 285. (Hsematoxylin and eosin.) A, Focaldiphtheritic exudation composed in its superficial segment of partially disintegratedpus-corpuscles, in its lower segment of a net-like handwork, which below and to theright passes directly into the tissue of the mucous membrane, but below and to the leftis still separated from this by remahis of epithelium (j5); C, Mucous membrane withcellular infiltration which consists of polynuclear and large mononuclear round cells ;a, Small extravasation of blood. acute stage of gonorrhceal urethritis are like those in purulent cystitis ;the secretion is composed solely of pus corpuscles, in the protoplasmof which the gonococci are usually situated, although the latter mayalso occur free (perhaps after bursting of the pus cells). The acutevery often passes into a chronic stage, in which the secretion becomesvery scanty, is composed
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectpatholo, bookyear1895
