Rosette-forming Glioneuronal Tumors in the Posterior Third Ventricle
نویسندگان
چکیده
منابع مشابه
Rosette-forming Glioneuronal Tumors in the Posterior Third Ventricle.
tumor found almost exclusively within the fourth ventricle. These grade I tumors were first included in the World Health Organization (WHO) Classification for the central nervous system in 20071. Since then, approximately 49 cases have been published1,2. There are no reported cases of RGNT within the third ventricle, although this tumor has also been described in the pineal region, the tectum a...
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Rosette-forming glioneuronal tumors (RGNTs) are rare glioneuronal tumors of the fourth ventricle region that preferentially affect young adults. Despite their histologic similarity with pilocytic astrocytomas (PAs), RGNTs do not harbor KIAA1549-BRAF fusions or BRAF mutations, which represent the most common genetic alteration in PAs. Recently, mutations affecting the hotspot codons Asn546 and L...
متن کاملRosette-forming glioneuronal tumor in the pineal gland and the third ventricle: a case with radiological and clinical implications.
A 39-year-old man presented with more than 20 years history of episodic headache and one year history of dizziness, impaired vision and memory disorders. Computed tomography and Magnetic resonance imaging revealed a cystic mass involving the pineal gland, tectum and the third ventricle and obstruction of the aqueduct. Interestingly, the fourth ventricle was not involved in this case. The pathol...
متن کاملRosette-forming glioneuronal tumour of the 4th ventricle in a NF1 patient.
of the 4th ventricle in a 41 year-old man with neurofibromatosis type 1 (NF1). This patient had a family history of NF1 and presented with café-au-lait spots and multiple neurofibromata. At the age of 16 years (1983), he presented with severe headache and the head computed tomogram (CT) scan showed a 4th ventricular mass. The mass was partially resected and the histology was initially reported ...
متن کاملRosette-forming glioneuronal tumour of the fourth ventricle: case report and review of the literature.
Rosette-forming glioneuronal tumour (RGNT) of the fourth ventricle is one of the newly described primary tumours of the central nervous system. These tumours have two components of both neurocytic and glial areas but usually the glial component of the tumour predominates. They have biphasic cytoarchitecture with two elements; neurocytic rosettes resembling Homer-Wright rosettes, and astrocytic ...
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ژورنال
عنوان ژورنال: Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques
سال: 2013
ISSN: 0317-1671,2057-0155
DOI: 10.1017/s0317167100016097