decidua

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Related to decidual: decidual reaction, decidual cast

decidua

[di′sij·ə·wə]
(medicine)
The endometrium of pregnancy and associated fetal membranes which are cast off at parturition.
References in periodicals archive ?
Additional features that were noted on histology in the HIV-positive group included evidence of meconium exposure (n=10), focal infarct (n=1), focal decidual vasculopathy (n=1), dysmaturity (n=3), fetal thrombotic vasculopathy (n=1), chorangiosis (n=1), intervillous thrombus (n=2) and intervillous haemorrhage (n=3); and in the HIV-negative group, infarcts (n=2), decidual vasculopathy (n=1) and dysmaturity (n=2).
These include dilation and enormous growth of the spiral arteries, destruction of the spiral artery endothelium and decidual invasion by trophoblast (31).
Production of granulocyte-macrophage colony-stimulating factor by human trophoblast cells and by decidual large granular lymphocytes.
36) Both LN and MCP showed even stronger statistical associations with other placental hypoxic lesions than with maternal and fetal status and were particularly associated with decidual arteriolopathy, multinucleated giant cells in decidua basalis, and excessive amount of extravillous trophoblasts in the placental disc (Table 2), just as they are associated with increased amount of migratory trophoblasts in the membranes themselves.
The proportion of epithetlial, subepithelial, predecidual, mature decidual and non-decidual cells in each selected field was determined.
Endometriosis offers additional diagnostic challenges when it is affected by decidual change (see also "Benign Eosinophilic Cell Infiltrate") or when it consists only of endometriotic stroma.
The investigation found a higher-than-expected rate of fetal loss, and no risk factors were noted other than the probability that sickling in the decidual vessels resulted in decreased placental perfusion, Dr.
He reports a focal decidual vasculopathy-like change in an endometrial curettage specimen from a woman who had previously undergone an ablation procedure, and he inquired about the presence of such a lesion in the case we reported.
In normal human pregnancy, the uterus and its arterial system, including the decidua and the adjacent third of the myometrium, are invaded by cytotrophoblasts (1, 2), which initiate conversion of the decidual vascular system from a high-pressure/low-flow system to a low-pressure/high-flow system that meets the needs of the fetus and placenta (3).
By the time the sac is 10 mm in diameter, you should see the double decidual sac sign--the gestational sac with inner and outer echogenicity.
Defective production of both leukemia inhibitory factor and type 2 T-helper cytokines by decidual T cells in unexplained recurrent abortions.
On the other hand, the creation of the placental basal plate matrix (Nitabuch fibrinoid) involves the deposition of fibrin into the wall of the decidual veins at sites of trophoblast invasion by intravenous activation of the maternal procoagulant cascade (16, 17).