title: Cerebral venous sinus thrombosis in an adolescent with Ewing sarcoma.
abstract: BACKGROUND
  Although thromboembolic complications are common in adult patients with malignant diseases, cerebral venous sinus thrombosis has been rarely described in cancer afflicted pediatric and adolescent population.
  
  
  METHODS
  A 16-year-old adolescent girl referred for complaints of pain and swelling on her left leg. On physical examination, a solid tibial mass was discovered. After the diagnosis of Ewing sarcoma with a tru-cut biopsy, chemotherapy protocol consisting of cisplatin, ifosfamide, adriamycine, and vincristine was started. During the first course of the treatment, the patient expressed headache, diplopia, and ptosis. Contrast-enhanced magnetic resonance (MR) images and MR angiography showed superior sagittal and transverse sinus thromboses. After anticoagulant therapy, the thromboses disappeared within 1.5 months. She received her chemotherapy protocol with the anticoagulant prophylaxis. After a follow-up period of 12 months, she is still in a good neurological recovery without any sequel.
  
  
  CONCLUSIONS
  Children and adolescents with cancer should be monitored closely for thrombotic complications. We discuss this uncommon case to draw attention to the importance of early diagnosis and adequate treatment of intracranial thrombosis in childhood cancer, and we review the relevant literature.
authors.affiliation: Meram Faculty of Medicine, Department of Pediatrics, Selcuk University, 42080, Konya, Turkey. drekremunal@yahoo.com.tr
authors.forename: Ekrem
authors.initials: E
authors.lastname: Unal
authors.forename: Abdullah
authors.initials: A
authors.lastname: Yazar
authors.forename: Yavuz
authors.initials: Y
authors.lastname: Koksal
authors.forename: Umran
authors.initials: U
authors.lastname: Caliskan
authors.forename: Yahya
authors.initials: Y
authors.lastname: Paksoy
authors.forename: Erdal
authors.initials: E
authors.lastname: Kalkan
mesh_terms: D000293:Adolescent; D000925:Anticoagulants / Q000627:therapeutic use; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use; D001859:Bone Neoplasms / Q000150:complications* / Q000188:drug therapy; D004172:Diplopia / Q000209:etiology; D005260:Female; D006261:Headache / Q000209:etiology; D006801:Humans; D008279:Magnetic Resonance Imaging; D012512:Sarcoma, Ewing / Q000150:complications* / Q000188:drug therapy; D012851:Sinus Thrombosis, Intracranial / Q000188:drug therapy / Q000209:etiology*; D013977:Tibia / Q000473:pathology; D020246:Venous Thrombosis
chemical_list: D000925:Anticoagulants