title: B-scan ultrasonography in optic nerve lesions.
abstract: After a short introduction to the method used in the Royal Dutch Eye Hospital in Utrecht, for B-scan ultrasonography with Coleman's apparatus, the normal echo pattern of the optic nerve and a number of abnormalities are considered. Excavation or prominence of the disc can be established, even when the media are opaque. In retro-bulbar neuritis, certain anomalies in the echo pattern are found in a high percentage of cases, as one of the few objective changes in this condition. Leber's optic atrophy appears to give a typical echo pattern. The echographic pictures of a glioma of the optic nerve and of displacement of the optic nerve, probably due to a metastasis from a cutaneous melanoma, are described.
mesh_terms: D000293:Adolescent; D000328:Adult; D001254:Astrocytoma / Q000175:diagnosis; D002648:Child; D003390:Cranial Nerve Neoplasms / Q000175:diagnosis / Q000556:secondary; D005260:Female; D005910:Glioma / Q000175:diagnosis; D006801:Humans; D008297:Male; D008545:Melanoma / Q000556:secondary; D009896:Optic Atrophy / Q000175:diagnosis; D009901:Optic Nerve Diseases / Q000175:diagnosis*; D009902:Optic Neuritis / Q000175:diagnosis; D010211:Papilledema / Q000175:diagnosis; D012878:Skin Neoplasms / Q000473:pathology; D014465:Ultrasonics / Q000295:instrumentation; D014463:Ultrasonography