title: Drusen of the optic disk in retinitis pigmentosa.
abstract: To clarify the nature of mulberry-like excresences of the optic disk, we histopathologically studied the eye of a 66-year-old woman with retinitis pigmentosa. Examination showed that the optic nerve excresences were ordinary drusen and not hamartomas. There was a marked predisposition to mineralization of other intraocular structures.
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D005134:Eye Neoplasms / Q000473:pathology; D005260:Female; D006222:Hamartoma / Q000473:pathology; D006801:Humans; D009898:Optic Disk / Q000473:pathology*; D012174:Retinitis Pigmentosa / Q000473:pathology*