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Optic and hypothalamic gliomasOOptic and hypothalamic gliomasOptic and hypothalamic gliomasEnglishNeurology;OncologyChild (0-12 years);Teen (13-18 years)BrainNervous systemConditions and diseasesAdult (19+)NA2009-07-10T04:00:00ZEric Bouffet, MD, FRCPC12.000000000000024.000000000000067.0000000000000Flat ContentHealth A-Z<p>Learn about hypothalamic gliomas and optic gliomas, their causes, and potential medical symptoms.<br></p><p>Optic and hypothalamic gliomas are usually benign, slow-growing tumours. Optic gliomas are located along the nerves involved with sight. Hypothalamic gliomas occur in an area of the brain called the hypothalamus. This area is involved in growth, sexual development, sleep patterns, regulating the body’s temperature, water balance, appetite, blood sugar levels, and the breakdown of fat from food (fat metabolism). </p> <p>These tumours are types of low grade glioma but unlike other low grade gliomas, optic and hypothalmic gliomas cannot be removed surgically due to the irreversible damage surgery would cause. </p><h2>Key points</h2> <ul><li>Optic gliomas are located along the nerves involved with sight and hypothalamic gliomas occur in an area of the brain called the hypothalamus.</li> <li>Optic and hypothalmic gliomas are usually benign and slow-growing.</li> <li>The cause of these tumours is unknown but children with NF1 have a slightly increased risk.<br></li> <li>Some symptoms include a swollen optic nerve ( papilledema), abnormal eye movements ( nystagmus), and personality changes.</li></ul>
Gliomes optiques et hypothalamiquesGGliomes optiques et hypothalamiquesOptic and hypothalamic gliomasFrenchNeurology;OncologyChild (0-12 years);Teen (13-18 years)BrainNervous systemConditions and diseasesAdult (19+)NA2009-07-10T04:00:00ZEric Bouffet, MD, FRCPC12.000000000000024.000000000000067.0000000000000Flat ContentHealth A-Z<p>Apprendre au sujet du gliome hypothalamique et du gliome optique. Réponses dignes de confiance de l’Hospital for Sick Children.</p><p>Les gliomes optiques et hypothalamiques sont habituellement des tumeurs bénignes à croissance lente. Les gliomes optiques se situent le long des nerfs qui participent à la vue. Les gliomes hypothalamiques se produisent dans la région du cerveau appelée l'hypothalamus. Cette région joue un rôle dans la croissance, le développement sexuel, les habitudes de sommeil, la régulation de la température corporelle, l'équilibre hydrique, l'appétit, les taux de sucre dans le sang et la dégradation du gras des aliments (métabolisme du gras). </p> <p>Ces tumeurs sont des types de gliomes de bas grade, mais contrairement à d’autres gliomes de ce type, les gliomes optiques et hypothalamiques ne peuvent pas être enlevés par chirurgie en raison des dommages irréversibles que causerait une chirurgie. </p><h2>À retenir</h2> <ul><li>Les gliomes optiques se situent le long des nerfs qui participent à la vue et les gliomes hypothalamiques surgissent dans la région du cerveau appelée l'hypothalamus.</li> <li>Les gliomes optiques et hypothalamiques sont généralement bénins et croissent lentement.</li> <li>Les causes de ces tumeurs ne sont pas connues, mais les enfants atteints d’un neurofibromatose de type 1 (NF1) courent un risque légèrement supérieur.</li> <li>Les symptômes comprennent une enflure du nerf optique (œdème papillaire), des mouvements oculaires anormaux (nystagmus) et des changements de personnalité.</li></ul>

 

 

Optic and hypothalamic gliomas1310.00000000000Optic and hypothalamic gliomasOptic and hypothalamic gliomasOEnglishNeurology;OncologyChild (0-12 years);Teen (13-18 years)BrainNervous systemConditions and diseasesAdult (19+)NA2009-07-10T04:00:00ZEric Bouffet, MD, FRCPC12.000000000000024.000000000000067.0000000000000Flat ContentHealth A-Z<p>Learn about hypothalamic gliomas and optic gliomas, their causes, and potential medical symptoms.<br></p><p>Optic and hypothalamic gliomas are usually benign, slow-growing tumours. Optic gliomas are located along the nerves involved with sight. Hypothalamic gliomas occur in an area of the brain called the hypothalamus. This area is involved in growth, sexual development, sleep patterns, regulating the body’s temperature, water balance, appetite, blood sugar levels, and the breakdown of fat from food (fat metabolism). </p> <p>These tumours are types of low grade glioma but unlike other low grade gliomas, optic and hypothalmic gliomas cannot be removed surgically due to the irreversible damage surgery would cause. </p><h2>Key points</h2> <ul><li>Optic gliomas are located along the nerves involved with sight and hypothalamic gliomas occur in an area of the brain called the hypothalamus.</li> <li>Optic and hypothalmic gliomas are usually benign and slow-growing.</li> <li>The cause of these tumours is unknown but children with NF1 have a slightly increased risk.<br></li> <li>Some symptoms include a swollen optic nerve ( papilledema), abnormal eye movements ( nystagmus), and personality changes.</li></ul><h2>What causes an optic or hypothalamic glioma?</h2><p>We don’t know what causes an optic or hypothalamic glioma. It can be connected with a medical condition called neurofibromatosis type 1 (NF-1). Between 30 to 50 of 100 children with optic or hypothalamic gliomas have NF-1. </p><p>However, there is no way to predict that a child will get a tumour. Nobody is to blame if a child develops a tumour. </p><p>Researchers have also been studying whether environmental factors, such as food or chemicals, can cause brain tumours. At the moment, there is no definite proof that there is a connection. </p><h2>How many other children have optic or hypothalamic gliomas?</h2><p>Optic or hypothalamic gliomas account for about four to six out of 100 brain tumours in children.</p><h2>What are some medical symptoms of optic or hypothalamic gliomas?</h2><p>Some symptoms include a swollen optic nerve (papilledema), abnormal eye movements (nystagmus), and personality changes. There may also be some vision loss or blindness. These tumours may cause changes in the hormones made by the hypothalamus and the pituitary gland. As a result, these tumours may also cause slowed or faster growth in the child, or diabetes insipidus. </p><p>Infants may have extreme weight loss. This is called diencephalic syndrome. </p><p>For more information please see:</p><ul><li> <a href="/Article?contentid=1324&language=English">Diagnosis of Optic and Hypothalamic Gliomas</a> </li><li> <a href="/Article?contentid=1358&language=English">Treatment of Optic and Hypothalamic Gliomas</a> </li></ul>Optic and hypothalamic gliomas

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