title: [Undifferentiated high-grade pleomorphic sarcoma of the orbit: a case report].
abstract: METHODS
  A 27-year-old female presented to us with a complaint of proptosis of her right eye. Imaging tests showed an extraconal mass in the medial orbital wall, which affected the medial rectus. The tumor was removed and adjuvant radiotherapy was required. The histological examination showed an undifferentiated high-grade pleomorphic sarcoma of the orbit. There has not been recurrence after 6 years of follow-up.
  
  
  CONCLUSIONS
  Undifferentiated high-grade pleomorphic sarcoma is an uncommon cause of malignant orbital mass. It grows fast and can metastasize, so extension studies are required. Surgical excision is the treatment of choice.
authors: Departamento de Oftalmología, Hospital 12 de Octubre, Madrid, España. Electronic address: ali_munozg@hotmail.com.
authors: A
authors: A
authors: Muñoz Gallego
authors: Departamento de Oftalmología, Hospital 12 de Octubre, Madrid, España.
authors: E
authors: E
authors: Mencía Gutiérrez
authors: Departamento de Anatomía Patológica, Hospital 12 de Octubre, Madrid, España.
authors: M
authors: M
authors: Cámara Jurado
authors: Departamento de Radiodiagnóstico, Hospital 12 de Octubre, Madrid, España.
authors: M S
authors: MS
authors: Gallego Gallego
authors: Departamento de Oftalmología, Hospital 12 de Octubre, Madrid, España.
authors: E
authors: E
authors: Gutiérrez Díaz
mesh_terms: D000328:Adult; D005260:Female; D051677:Histiocytoma, Malignant Fibrous / Q000473:pathology*; D006801:Humans; D060787:Neoplasm Grading; D009918:Orbital Neoplasms / Q000473:pathology*
keywords: High-grade sarcoma; Masa orbitaria; Orbital mass; Orbital tumor; Proptosis; Sarcoma de alto grado; Sarcoma pleomorfo indiferenciado; Tumor orbitario; Undifferentiated pleomorphic sarcoma