Ultrastructure of Placenta of Gravidas with Gestational Diabetes Mellitus

Table 2

Terminal villi were evaluated with respect to cytoplasmic vacuoles, pyknosis, and edema in the stroma, according to the semiquantitative score based on the degree of ultrastructural change.

Characteristics	0	1	2	3
Cytoplasmic vacuoles	None	Sporadic vacuoles	Moderate degenerative vacuolation	Distinct degenerative vacuolation
Pyknosis	None	Mild pyknosis	Moderate pyknosis	Obvious pyknosis
Stroma edema	None	Mild	Moderate	Massive
Mitochondria	None	Mildly swollen	Obviously swollen	Completely destroyed
Endoplasmic reticulum	None	Mildly swollen	Obviously swollen	Completely destroyed