An American text-book of genito-urinary diseases, syphilis and diseases of the skin . ped from the urachus (Palaillon) and the utriculus prostaticus (Ver-haagen). The other forms of perivesical growths are more or less connected withcystic processes. Several of the reported dermoid cysts have been strictly TUMORS OF THE BLADDER. 393 perivesical, involving the bladder-tissue, but growing outward. As a rule,however, they have been paravesical growths which have become attached tothe bladder. Another class of cysts somewhat allied to dermoid cysts are the cysts whichdevelop from embryonal remnant
An American text-book of genito-urinary diseases, syphilis and diseases of the skin . ped from the urachus (Palaillon) and the utriculus prostaticus (Ver-haagen). The other forms of perivesical growths are more or less connected withcystic processes. Several of the reported dermoid cysts have been strictly TUMORS OF THE BLADDER. 393 perivesical, involving the bladder-tissue, but growing outward. As a rule,however, they have been paravesical growths which have become attached tothe bladder. Another class of cysts somewhat allied to dermoid cysts are the cysts whichdevelop from embryonal remnants. These are situated in the posterior andinferior wall, and are of four classes (Englisch)—those which have developedfrom the Wolffian duct, from the Mullerian duct, from the utriculus pros-taticus, and from the seminal vesicles. The locations of these cysts are notthe same: those of the Mullerian and Wolffian ducts are in the posteriormedian line, and may extend upward some distance, even as far as the kidney(Cornil). They are usually attached to the prostate. The -cysts which. Fig. 115.—Retrovesical cyst with opening into bladder just above the trigone (Wistar Institute ofAnatomy, Univ. of Penn.). arise from the utriculus prostaticus are likewise in the posterior median lineand are attached to the base of the prostate. The cysts of the seminal vesi-cles are latero-posterior, in front of the prostato-peritoneal aponeurosis, butbelow the rectovesical sac of the peritoneum. Thus these latter are strictlyparavesical cysts; the others are, however, usually incorporated within thebladder-wall. Segond has described a cyst in the posterior wall of thebladder as large as a walnut which had the appearance of a simple epithelialcyst. The paravesical growths are of many varieties, and include both solidand cystic tumors. Under the headings of Carcinoma and Sarcoma somemention has been made of vesical involvement from paravesical growths. 394 DISEASES OF THE BLADDER. Any malignant di
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Keywords: ., bookcentury1800, bookdecade1890, booksubject, booksubjectsyphilis
