9514/1 Retinoblastoma, spontaneously regressed


Definitions

Eye and adnexa
ICD-O-3 topography code: C69

This term applies to a retinoblastoma which has regressed spontaneously. Histologic examination of the tumor reveals benign-appearing tumor cells, with no evidence of nuclear atypia, pleomorphism, or rosettes formation. There is a well-vascularized stroma which contains calcifications.