TABLE 1.

Pathologies in placental vascular construct

Component	Placental examination
Maternal
Depressed area on maternal surface caused by hemorrhage	Gross
Hemorrhage (old or abruption) on maternal surface, not <0.5 cm from peripheral edge of hemorrhage to placental margin	Gross
Infarcts on cut surface (>3 or ≤3 with at least one measuring ≥3 cm)	Gross
Infarct(s) on maternal floor	Gross
Atheroma in decidual vessels	Microscopic
Fibrinoid in decidual vessels	Microscopic
Marked necrosis in decidua basalis	Microscopic
Microinfarcts at terminal villi	Microscopic
Nucleated red blood cells in fetal circulation at terminal villi	Microscopic
Fetal
Thrombosed fetal vessels present on membranes/fetal surface	Gross
Thrombosis of cord vessels present	Microscopic
Thrombosis and/or necrosis of fetal surface membranes	Microscopic