Hyperplasia of the endometrium obsolete endometrial hyperplasia https://github.com/monarch-initiative/mondo/issues/3811 https://www.malacards.org/card/endometrial_hyperplasia true SCTID:237072009 MONDO:0041161 HP:0040298 MESH:D004714 NCIT:C3013 OBSOLETE. A proliferation of the endometrial cells resulting in glandular enlargement and budding. The proliferation may or may not be associated with atypia of the endometrial cells. When the hyperplastic changes are excessive, there is formation of complex epithelial structures (complex endometrial hyperplasia). endometrial hyperplasia hyperplasia of the endometrium DOID:0080365 hyperplasia of endometrium