Pathological hyperplasia o Hormonal hyperplasia:endometrial hyperplasia (disturbed pituitary hormones ovarian estrogen driven) o Ingrowth of granulation tissue:an important response of connective tissue cells in wound healing Viral driven hyperplasia:papillomavirus,leading to skin or mucosal epithelial hyperplasia,in some, resulting in neoplastic proliferation (growth factor from the virus or infected cells)Pathological hyperplasia  Hormonal hyperplasia: endometrial hyperplasia (disturbed pituitary hormones & ovarian estrogen driven)  Ingrowth of granulation tissue: an important response of connective tissue cells in wound healing  Viral driven hyperplasia: papillomavirus, leading to skin or mucosal epithelial hyperplasia, in some, resulting in neoplastic proliferation (growth factor from the virus or infected cells)