title: [Giant nodular posterior scleritis compatible with ocular sarcoidosis simulating choroidal melanoma].
abstract: METHODS
  A 30-year-old man was referred to our ocular oncology service with a diagnosis of amelanotic choroidal melanoma of the left eye. The following tests were performed: ophthalmoscopy, fluorescein angiography, indocyanine green angiography, ultrasonography, magnetic resonance imaging and biopsy.
  
  
  CONCLUSIONS
  The diagnosis of giant nodular posterior scleritis, as suggested by ultrasonography, was confirmed by biopsy. A comprehensive medical evaluation was performed, but no etiology was found. The histology revealed a granuloma compatible with ocular sarcoidosis. A rapid response was obtained by systemic steroid administration (1 mg/kg). Sarcoidosis continues to be a challenge in diagnosis. It is important to distinguish nodular posterior scleritis from choroidal melanoma.
authors.affiliation: Hopital Ophtalmique Jules Gonin, Université de Lausanne, Lausanne, Switzerland. eperezcampagne@gmail.com
authors.forename: E
authors.initials: E
authors.lastname: Pérez-Campagne
authors.forename: Y
authors.initials: Y
authors.lastname: Guex-Crosier
authors.forename: A
authors.initials: A
authors.lastname: Schalenbourg
authors.forename: S
authors.initials: S
authors.lastname: Uffer
authors.forename: L
authors.initials: L
authors.lastname: Zografos
mesh_terms: D000328:Adult; D002830:Choroid Neoplasms / Q000175:diagnosis*; D003937:Diagnosis, Differential; D005128:Eye Diseases / Q000150:complications / Q000175:diagnosis; D006801:Humans; D008297:Male; D008545:Melanoma / Q000175:diagnosis*; D012507:Sarcoidosis / Q000150:complications / Q000175:diagnosis*; D015423:Scleritis / Q000150:complications / Q000175:diagnosis*