title: [Typical and atypical ultrasonic forms of retinoblastoma].
abstract: Ultrasonographic examination of leukokoria has proved useful to demonstrate the presence of an intraocular mass and to confirm a suspected retinoblastoma. However, some retinoblastomas present atypical clinical and ultrasonic appearances leading to errors in diagnosis. The ultrasonic characteristics of the two classic types, are presented, together with a third type in which the appearance is diffuse or pseudoinflammatory, one case having been previously misdiagnosed as sub-clinical endophthalmitis. The different characteristics of the three types and their relationship with histologic forms are discussed.
mesh_terms: D002675:Child, Preschool; D003937:Diagnosis, Differential; D009877:Endophthalmitis / Q000175:diagnosis; D005134:Eye Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D006801:Humans; D007223:Infant; D012175:Retinoblastoma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D014463:Ultrasonography
vernacular_title: Formes échographiques typiques et atypiques des rétinoblastomes.