title: [Photographic diagnosis for common intraorbital tumors].
abstract: OBJECTIVE
  To compare and analyze the modern photographic methods used for localization and analysis of the nature of intraorbital tumors.
  
  
  METHODS
  B-scan, CT scan and magnetic resonance imaging (MRI) were used to examine six types of common intraorbital tumor (20 cases for each type).
  
  
  RESULTS
  Each method can locate and show the nature of the lesions, and B-scan has a better value to display internal structure and dynamics of orbital lesions. CT can discover the lesions and exactly show their locations, while MRI is more valuable to display the optic nerve tumor and the extension of intraorbital tumor to extraorbital regions.
  
  
  CONCLUSIONS
  All the above methods can locate and show the nature of intraorbital tumors, and each has its own special defects and advantages which can be complementary to one another.
authors.affiliation: Department of Ophthalmology, Tong Ren Hospital, Beijing.
authors.forename: J
authors.initials: J
authors.lastname: Shi
authors.forename: G
authors.initials: G
authors.lastname: Song
authors.forename: L
authors.initials: L
authors.lastname: Xiao
mesh_terms: D003884:Dermoid Cyst / Q000175:diagnosis / Q000000981:diagnostic imaging; D006392:Hemangioma, Cavernous / Q000175:diagnosis / Q000000981:diagnostic imaging; D006801:Humans; D008279:Magnetic Resonance Imaging; D009918:Orbital Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D016727:Orbital Pseudotumor / Q000175:diagnosis / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography