title: Growing teratoma syndrome as an unusual cause of gliomatosis peritonei: a case report.
abstract: BACKGROUND
  Growing teratoma syndrome (GTS) is defined as enlarging peritoneal implants that occur during or after chemotherapy for malignant germ cell tumors, but are histologically mature teratomas without any malignant components. GTS is a synonym for "chemotherapeutic retroconversion", i.e., conversion from a metastatic immature teratoma to a mature tumor by chemotherapy. Gliomatosis peritonei (GP) is a rare condition associated with ovarian teratomas of any grade, in which benign glial implants develop on the peritoneal surface.
  
  
  METHODS
  We present a case of a 34-year-old woman with GTS.
  
  
  CONCLUSIONS
  Present case supported by review of the literatures suggests that GTS can be a part of GP, because both GTS and GP are associated with benign peritoneal glial implants regardless of grade of malignancy of their original tumor.
authors.affiliation: Department of Obstetrics and Gynecology, Mie University, 2-174, Edobashi, Tsu, Mie, and Department of Obstetrics and Gynecology, Mie Central Hospital, Hisai, Japan. umkwtks@clin.medic.mie-u.ac.jp
authors.forename: Takashi
authors.initials: T
authors.lastname: Umekawa
authors.forename: Tsutomu
authors.initials: T
authors.lastname: Tabata
authors.forename: Koji
authors.initials: K
authors.lastname: Tanida
authors.forename: Koichi
authors.initials: K
authors.lastname: Yoshimura
authors.forename: Norimasa
authors.initials: N
authors.lastname: Sagawa
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D009457:Neuroglia / Q000473:pathology*; D010051:Ovarian Neoplasms / Q000473:pathology*; D010534:Peritoneal Neoplasms / Q000473:pathology*; D013724:Teratoma / Q000473:pathology*