Table 4 Results of CD 15 immunoreactivity to evaluate inflammatory response and risk for intra-uterine foetal hypoxia

Veins/Arteries of stem Villi

Absent/Absent

Focal/Absent (Low expression) ^a

Focal/Absent (Low expression) ^a

Absent/Absent

Absent/Absent

Capillaries of the terminal villi

Absent

Very rare < 50%^a

Rare and focal (< 50%) ^a

Many (< 50%)^a

Rare and focal (< 50%)^a

Umbilical vessels

Absent

Present in an umbilical artery involving both its smooth muscle and Wharton’s jelly (score 3)^b

Amsterdarm’s stage 2

Absent

Absent

Absent

Amniotic membranes

Absent

Present involving fibrous chorion and amnion (stage 2) grade 1

Absent

Absent

Absent