Table 6  2014 WHO classification of endometrial hyperplasia compared to earlier classifications 78 .

Dallenbach-Hellweg classification	1994/2003 WHO classification	2014 WHO classification
* EIN = endometrial intraepithelial neoplasia
Glandular cystic hyperplasia Grade 1 adenomatous hyperplasia	Simple hyperplasia without atypia	Endometrial hyperplasia without atypia
Grade 2	Complex hyperplasia without atypia
Grade 3	Simple atypical endometrial hyperplasia Complex atypical endometrial hyperplasia	Atypical endometrial hyperplasia/EIN*