Table 1.

The histological cut-off point adopted for the diagnosis of adenomyosis in different studies.

Reference	Descriptor
	Microscopic field of view
Novak and Woodruff, 1979	>1 high-power field.
Parazzini et al., 1997	>0.5 of low-power field
Zaloudek and Hendrickson, 2002	>0.5 of low-power field
Gompel and Silverberg, 1985	medium-power field (×100 lens)
Owolabi and Strickler, 1977	>low-power field
	Uterine wall thickness
Hendrickson and Kempson, 1980	>1/4 of the total thickness
Shaikh and Khan, 1990	>1/3 to 1/4 of the total thickness
	Measurement in mm
Bergholt et al., 2001	recommend 3 mm as cut-off
Levgur et al., 2000	≥2.5 mm