title: [A case of ring melanoma found while treating traumatic glaucoma].
abstract: BACKGROUND
  Ring melanoma, a malignant melanoma which infiltrates over 180 degrees degrees of the ciliary body is very rare in Japan. We report a case of ring melanoma found while treating treatment of traumatic glaucoma with an ultrasound biomicroscope (UBM).
  
  
  METHODS
  A 44-year old woman presented with high intraocular pressure after blunt trauma in her left eye.
  
  
  RESULTS
  Best-corrected visual acuity OS was 1.2, and intraocular pressure was 30 mmHg. Gonioscopy showed about 180 degrees of the angle recession. Intraocular pressure was difficult to control in spite of anti-glaucoma drug treatment. Rapid progression of iris elevation and 360 degrees thickening of the ciliary body were detected by UBM. We detected atypical cells with melanine granules in the aqueous fluid and positive findings in PET-CT, leading to a diagnosis of ciliary body malignant melanoma. Consequently we enucleated the left eye. The histopathological diagnosis was ring melanoma.
  
  
  CONCLUSIONS
  Ring melanoma is an important element in the differential diagnosis for untreatable secondary glaucoma.
authors.affiliation: Department of Ophthalmology, Kansai Medical University, 2-3-1 Shinmachi, Hirakata-shi, Osaka-fu 573-1191, Japan. manabe.kazuyo@jp.panasonic.com
authors.forename: Kazuyo
authors.initials: K
authors.lastname: Manabe
authors.forename: Nobuo
authors.initials: N
authors.lastname: Jo
authors.forename: Hiroko
authors.initials: H
authors.lastname: Tateno
authors.forename: Nami
authors.initials: N
authors.lastname: Shishidon
authors.forename: Kanji
authors.initials: K
authors.lastname: Takahashi
authors.forename: Kenshiro
authors.initials: K
authors.lastname: Iwashita
authors.forename: Taiki
authors.initials: T
authors.lastname: Isei
authors.forename: Chisato
authors.initials: C
authors.lastname: Ohe
authors.forename: Noriko
authors.initials: N
authors.lastname: Sakaida
authors.forename: Yoshiko
authors.initials: Y
authors.lastname: Uemura
mesh_terms: D000328:Adult; D002924:Ciliary Body / Q000473:pathology*; D005260:Female; D005901:Glaucoma / Q000150:complications / Q000628:therapy*; D006801:Humans; D007429:Intraocular Pressure / Q000502:physiology*; D008545:Melanoma / Q000150:complications / Q000175:diagnosis / Q000601:surgery*; D033401:Microscopy, Acoustic / Q000379:methods; D016896:Treatment Outcome; D014604:Uveal Neoplasms / Q000150:complications / Q000175:diagnosis / Q000601:surgery*; D000098943:Uveal Melanoma