A treatise on the science and practice of midwifery . d itself on the inflamedmucous membrane, which was in an unfit condition for its receptionand growth. A not uncommon result, under such circumstances, is thelaceration of some of the decidual vessels, extravasation of blood be-tween the decidua and the uterine walls, and consequent abortion atan early stage of pregnancy. As this morbid state of the uterinemucous membrane is likely to continue after abortion is completed,the same history repeats itself on each impregnation, and thus wemay have constant early miscarriages produced. It does no
A treatise on the science and practice of midwifery . d itself on the inflamedmucous membrane, which was in an unfit condition for its receptionand growth. A not uncommon result, under such circumstances, is thelaceration of some of the decidual vessels, extravasation of blood be-tween the decidua and the uterine walls, and consequent abortion atan early stage of pregnancy. As this morbid state of the uterinemucous membrane is likely to continue after abortion is completed,the same history repeats itself on each impregnation, and thus wemay have constant early miscarriages produced. It does not neces-sarily follow, however, that the pregnancy is immediatedly terminatedwhen this state of things is present. Sometimes a condition of PATHOLOGY OF THE DECIDUA AND OVUM 213 hyperplasia of the decidua is produced, the membrane becomes muchthickened and hypertrophied, and the decidual cells are greatly in-creased in size (Fig. 82). In other instances the internal surface ofthe decidua becomes studded with rough polypoid growths,1 depend- Fig. Hypertrophied Decidua laid open, with the Ovum attached to its FundalPortion. (After Duncan.) ing on proliferation of its interstitial tissue. Duncan has found thatthe hypertrophied decidua is always in a state of fatty degeneration,more advanced in some places than in The result of thesealterations is frequently to produce dwindling or death of the ovum,which, however, retains its connection with the decidua, until, aftera lapse of time, the decidua is expelled in the form of a thick tri-angular fleshy substance, with the atrophied ovum attached to somepart of its inner surface. In other cases, in which the hyperplasiahas advanced to a less extent, the nutrition of the foetus is not inter-fered with, and pregnancy may continue to term, the changes in thedecidua being recognizable after delivery. Other diseases besidesendometritis may give rise to similar alterations in the decidua, oneof these being, as Yirchow maintains,
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Keywords: ., bookcentury1800, bookdecade1870, bookidtre, booksubjectobstetrics
