Al-Bassam M A, Thomson R G, O'Donnell L
Vet Pathol. 1981 Mar;18(2):208-18. doi: 10.1177/030098588101800208.
Of 95 reproductive tracts from postpartum bitches, 20 had subinvolution of the placental sites. Grossly, the placental sites were hemorrhagic and about twice the size of normal sites at the same time after parturition. Microscopically, large masses of collagen, hemorrhage and dilated endometrial glands were in the endometrial sites. The myometrium was invaded in many areas by trophoblast-like cells from the endometrium. Variations in the size of placental sites in the same uterus were found in eight cases, and histological variations in the involution process in five. Invasion of the myometrium by trophoblast-like cells four days after parturition was seen in one bitch.
在95只产后母犬的生殖道中，20只有胎盘部位复旧不全。大体上，胎盘部位有出血，在分娩后同一时间约为正常部位大小的两倍。显微镜下，子宫内膜部位有大量胶原、出血和扩张的子宫内膜腺体。肌层在许多区域被来自子宫内膜的滋养层样细胞侵入。在8例中发现同一子宫内胎盘部位大小存在差异，5例在复旧过程中存在组织学差异。在1只母犬中观察到产后4天滋养层样细胞侵入肌层。
