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Chiasmal syndrome is the set of signs and symptoms that are associated with lesions of the optic chiasm, manifesting as various impairments of the affected's visual field according to the location of the lesion along the optic nerve. Pituitary adenomas are the most common cause; however, chiasmal syndrome may be caused by cancer, or associated with other medical conditions such as multiple sclerosis and neurofibromatosis.

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  • متلازمة التصالبة (ar)
  • Chiasma-Syndrom (de)
  • Chiasmal syndrome (en)
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  • متلازمة التصالبة هي مجموعة من العلامات والأعراض المرتبطة بآفات التصالب البصري، والتي تظهر على شكل ضعف في المجال البصري للمريض، وذلك بحسب موقع الآفة على طول العصب البصري. أورام الغدة النخامية هي السبب الأكثر شيوعًا لها. ومع ذلك، قد تحدث المتلازمة بسبب السرطان، أو ترتبط بحالات طبية أخرى مثل التصلب المتعدد والورم العصبي الليفي. (ar)
  • Chiasmal syndrome is the set of signs and symptoms that are associated with lesions of the optic chiasm, manifesting as various impairments of the affected's visual field according to the location of the lesion along the optic nerve. Pituitary adenomas are the most common cause; however, chiasmal syndrome may be caused by cancer, or associated with other medical conditions such as multiple sclerosis and neurofibromatosis. (en)
  • Das Chiasma-Syndrom (englisch chiasma syndrome, auch bitemporale Hemianopsie) tritt bei einer Schädigung des Chiasma opticum (Überkreuzung der Sehnervenstränge im Bereich der Hypophyse) auf. Im Chiasma opticum kreuzen jeweils die Fasern der nasalen Netzhaut, welche das jeweils temporale (äußere) Gesichtsfeld repräsentieren. Wenn also nur die kreuzenden Fasern geschädigt werden und der Rest intakt bleibt, dann hat der Patient ausschließlich Ausfälle im jeweils temporalen Gesichtsfeld (bitemporale Hemianopsie), sieht den Rest aber einwandfrei. Er sieht also die Mitte seines Gesichtsfeldes, aber nicht die Seiten (wie ein Tunnelblick). (de)
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  • Optic chiasm (en)
  • chiasma opticum (en)
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  • Optic chiasm (en)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/1543,Visalius'OpticChiasma.jpg
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