title: [Growing teratoma syndrome in a patient with intracranial germ cell tumor].
abstract: A six-year-old patient with non-germinomatous germ cell tumor of the chiasmatic-sellar area developed polyuria and polydipsia as the first symptoms of the disease. Then there were signs of precocious puberty and vision impairment. MRI examination revealed a shiasmatic sellar tumor and occlusive hydrocephalus. Tumor marker levels in blood serum were elevated. The alpha-fetoprotein level was increased 5-fold; human chorionic gonadotropin 20-fold. These levels increased over time. The patient received 2 cycles of PEI multiagent chemotherapy (Ifosfamide 1.5 g/m(2), Cisplatin 20 mg/m(2), Etoposide 100 mg/m(2)) during 5 days and 1 cycle of second-line multiagent chemotherapy (Cisplatin 100 mg/m(2) for 1 day and Endoxan 1500 mg/m(2) for 2 days). Despite the decrease in tumor marker levels to normal values, the patient's vision still deteriorated. MRI examination revealed that tumor size increased and its structure changed. Total tumor resection led to vision improvement and regression of intracranial hypertension. Histological analysis of tumor tissue only revealed a mature teratoma. This phenomenon, known as growing teratoma syndrome, is very rare among patients with intracranial non-germinomatous germ cell tumors.
authors.affiliation: Russian Scientific Center of Roentgenoradiology, Moscow.
authors.forename: O G
authors.initials: OG
authors.lastname: Zheludkova
authors.affiliation: Burdenko Neurosurgical Institute, Moscow.
authors.forename: L V
authors.initials: LV
authors.lastname: Shishkina
authors.affiliation: Burdenko Neurosurgical Institute, Moscow.
authors.forename: A N
authors.initials: AN
authors.lastname: Konovalov
authors.affiliation: Burdenko Neurosurgical Institute, Moscow.
authors.forename: M V
authors.initials: MV
authors.lastname: Ryzhova
authors.affiliation: Morozov children hospital.
authors.forename: A N
authors.initials: AN
authors.lastname: Kislyakov
authors.affiliation: Federal Scientific and Clinical Center for Childhood Hematology, Oncology and Immunology, Ministry of Health of the Russian Federation, Moscow.
authors.forename: S S
authors.initials: SS
authors.lastname: Ozerov
authors.affiliation: Burdenko Neurosurgical Institute, Moscow.
authors.forename: Yu Yu
authors.initials: YY
authors.lastname: Trunin
authors.affiliation: Burdenko Neurosurgical Institute, Moscow.
authors.forename: N A
authors.initials: NA
authors.lastname: Mazerkina
authors.affiliation: Scientific and Practical Center for Medical Aid to Children with Craniofacial Malformations and Nervous System Disorders, Moscow.
authors.forename: O V
authors.initials: OV
authors.lastname: Klimchuk
authors.affiliation: Russian Children's Clinical Hospital, Moscow.
authors.forename: E M
authors.initials: EM
authors.lastname: Tarasova
mesh_terms: D002648:Child; D006801:Humans; D007029:Hypothalamic Neoplasms / Q000175:diagnosis* / Q000188:drug therapy / Q000601:surgery; D008297:Male; D059606:Polydipsia / Q000175:diagnosis; D011141:Polyuria / Q000175:diagnosis; D013577:Syndrome; D013724:Teratoma / Q000175:diagnosis* / Q000188:drug therapy / Q000601:surgery; D014786:Vision Disorders / Q000175:diagnosis