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2) Thrombosis of fetal chorionic plate vessels, especially in the presence of severe fetal inflammatory response or funisitis, is observed (Figure 15).
It also assessed the significance of large vessel lesions and designated the severe category as occlusive or nonocclusive cord thrombi and/or 2 or more thrombi in the chorionic plate and/or stem villous vessels.
In the stem villi and in the chorionic plate there was moderate hardening of the stroma.
Considerable stromal sclerosis, focal hemorrhages in the stem villi and chorionic plate.
However, in the chorionic plate arteries overlie corresponding veins and thrombosed vessels are thus potentially grossly distinguishable from one another (Figure 21).
8,9,10,11) Abnormal chorionic plate shape usually reflects pathologic villous atrophy from the end of first trimester or placental infarct.
In grade 0, the chorionic plate appears as a smooth line with no indentation.
Components of Standardized Examination Gross examination Fetus: * Aggregate weight * Head, scalp, skull * Face: ears, eyes, nose, mouth, palate * Extremities: fingers, palmar creases, toes, foot length * Ribs and vertebral column * External genitalia * Internal genitalia * Loose organs * Other anomalies Placenta: * Aggregate weight * Umbilical cord: length, diameter, vessels, insertion * Membranes: color, insertion * Chorionic plate * Villous and decidual tissue Histologic examination Examination of representative samples of all identified fetal organs, umbilical cord, membranes, chorionic plate, villous parenchyma
In third trimester PMD placenta, the chorionic plate vessels are aneurysmally dilated and tortuous (Figure 1, A and B), measuring up to 2.
Recent chorionic vessel thrombi were defined by laminated fibrin adherent to the endothelium of major vessels in the chorionic plate.
Only in the case of irregularly shaped chorionic plates did each of the two pathologies have a significant association with placental inefficiency.

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