Compressive Optic Nerve Lesions at the Optic Canal - Pathogenesis - Diagnosis - Treatment (Paperback, Softcover reprint of the original 1st ed. 1989)

The optic canal, in particular its intracranial end, represents a "locus minoris resistentiae" for optic nerve compression in a variety of pathologic conditions. The intracranial optic nerve shares the limited space within this narrow passage with the carotid and ophthalmic artery, all being surrounded by bone and rigid dura. Any pathological condition going along with an increase of soft tissue volume, such as in optic nerve sheath tumors, parasellar neoplasms, dolichoectasia of the carotid and/ or ophthalmic artery, hematomas, etc. , or reduction of the lumen of the bony optic canal by hyperpneumatization of the sphenoid sinus, hyperostosis or developmental abnormalities must act as a space-occupying lesion causing optic nerve compression either by pressing the nerve against the vessel or the neighboring dura or bone. The spectrum of clinical signs and symptoms of optic nerve compression in this area is rather wide and includes acute as well as slowly progressive visual loss and all kinds of visual field defects in the presence of a normal disk, papilledema, pri- mary optic atrophy or cavernous optic atrophy mimicking var- ious clinical disease entities such as retrobulbar optic neuritis, anterior and posterior ischemic optic neuropathy, soft glaucoma and others. Some of the lesions causing optic nerve compression in this area are rather small and need to be visualized or excluded by thin section CT such as pneumosinus dilatans of the sphenoid bone, dolichoectasia of the internal carotid artery, small men- ingiomas around the optic foramen and others.

General

Imprint:	Springer-Verlag
Country of origin:	Germany
Release date:	December 2011
First published:	1989
Authors:	Renate Unsoeld
Assisted by:	Michael Bach
Authors:	Wolfgang Seeger
Assisted by:	Hans-Rudolf Eggert • Gabriele Greeven • Jack DeGroot
Dimensions:	280 x 210 x 8mm (L x W x T)
Format:	Paperback
Pages:	140
Edition:	Softcover reprint of the original 1st ed. 1989
ISBN-13:	978-3-642-73384-0
Categories:	Books > Medicine > Clinical & internal medicine > Neurology & clinical neurophysiology Books > Medicine > Clinical & internal medicine > Ophthalmology Books > Medicine > Surgery > Neurosurgery Books > Medicine > Other branches of medicine > Medical imaging > Radiology
LSN:	3-642-73384-0
Barcode:	9783642733840

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