File:A textbook of obstetrics (1898) (14757771876).jpg

Identifier: textbobstet00hirs (find matches)
Title: A textbook of obstetrics
Year: 1898 (1890s)
Authors: Hirst, Barton Cooke, 1861-1935
Subjects: Obstetrics
Publisher: Philadelphia : Saunders
Contributing Library: Yale University, Cushing/Whitney Medical Library
Digitizing Sponsor: Open Knowledge Commons and Yale University, Cushing/Whitney Medical Library

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blood-vessels thus exposed are liable to laceration during labor, usu-ally with a fatal result to the fetus unless delivery is quicklyeffected. Umbilical Hernia.—Occasionally children are born with agreater or less portion of the abdominal contents protruding intothe umbilical cord and covered by nothing but the distended andattenuated amnion. There has been an arrest of development in 133 r REG NANCY. the abdominal walls, preventing the completion of the arching-over process by which the abdominal cavity is closed. Cysts of the Cord.—Cystic formations in the cord are dueeither to an abnormally fluid condition of the mucous tissue orelse to a collection of serum in the pedicle of the allantois, whichin horses, swine, and cows is found persisting as a vesicle up tothe time of birth. Calcareous Degeneration.—This condition of the cord isoccasionally found and is usually associated with syphilis. Thelime may be deposited in the walls of blood-vessels or in thesubstance of the cord.
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Fig. 105.—Tumor of the cor , Cord ; T, tumor (Budin). Tumors of the Cord.—Tumors of the cord may be cysts,localized hypertrophies, or accumulations of the mucous tissue,hematomata, a small fetus amorphus, as in Budins case (Fig.105), and telangiectatic myxosarcomata. The last named shouldbe excised immediately after birth, with, perhaps, the umbilical ring.L 1 V. Winckel, Centralbl. f. Gyn.,lected four others. 894, p. 397, reported one case and col- THE DECIDUsE. 139 THE DECIDUAE. The explanation which John Hunter gave of the plates pub-lished by his brother William 1 was, for a long time, accepted asthe true history of the development of the uterine membrane whichenvelops the fetus at term. According to the Hunterian theory,the uterus throws out upon its inner surface an inflammatoryexudate forming a closed sac whose walls stretched across theopenings of the tubes and the os internum cervicis. As the im-pregnated ovule enters the uterus from one of the tubes itpushes the sac-wall

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