title: A rare case of extraosseous Ewing sarcoma primarily arising in the ovary.
authors.affiliation: Department of Obstetrics and Gynecology, West China Second Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
authors.forename: Min-Min
authors.initials: MM
authors.lastname: Hou
authors.forename: Ming-Rong
authors.initials: MR
authors.lastname: Xi
authors.forename: Kai-Xuan
authors.initials: KX
authors.lastname: Yang
mesh_terms: D000293:Adolescent; D005260:Female; D006801:Humans; D010051:Ovarian Neoplasms / Q000175:diagnosis*; D012512:Sarcoma, Ewing / Q000175:diagnosis*