title: [Positron emission tomography in the diagnosis of orbital relapse of choroidal melanoma].
abstract: METHODS
  A 72-year-old man with a large choroidal melanoma was treated with enucleation. Three years later MRI demonstrated images compatible with recurrent tumor in the orbit. PET studies showed no focal hypermetabolic abnormalities.
  
  
  CONCLUSIONS
  In patients after enucleation of choroidal melanoma, conventional imaging techniques can fail to establish differentiation between malignant from post-surgery and benign anatomic abnormalities in orbital tissue that can be detected by PET scanning.
authors.affiliation: Servicio de Oftalmología, Hospital General, Medina del Campo, Valladolid, España.
authors.forename: V M
authors.initials: VM
authors.lastname: Asensio Sánchez
authors.forename: M
authors.initials: M
authors.lastname: Alonso
authors.forename: J M
authors.initials: JM
authors.lastname: Sierra
mesh_terms: D000368:Aged; D002830:Choroid Neoplasms / Q000473:pathology* / Q000601:surgery; D003937:Diagnosis, Differential; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008545:Melanoma / Q000175:diagnosis / Q000556:secondary*; D009364:Neoplasm Recurrence, Local / Q000175:diagnosis*; D009915:Orbit / Q000000981:diagnostic imaging / Q000473:pathology*; D009918:Orbital Neoplasms / Q000175:diagnosis / Q000556:secondary*; D049268:Positron-Emission Tomography; D011859:Radiography