Pencil gliomas of the aqueduct of Sylvius

Sanford, Robert A.; Bebin, José; Smith, R. W.

doi:10.3171/jns.1982.57.5.0690

Cited by 44 publications

(22 citation statements)

References 13 publications

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“…Headache was the chief complaint in the present series as well as that reported in the literature [1, 2, 3, 4]. There was a paucity of neurological findings upon presentation aside from the signs and symptoms of increased intracranial pressure.…”

Section: Discussionmentioning

confidence: 65%

“…MR imaging has proven more effective than CT in demonstrating tectal region neoplasms. There remains uncertainty, however, regarding the natural history and the potential of these lesions for long-term progression [1, 2, 3, 4, 5, 6]. Gliomas of the tectal plate have been reported to be particularly indolent, often remaining stable in size for several years, in contrast to other brainstem tumors.…”

Section: Introductionmentioning

confidence: 99%

“…Gliomas of the tectum and periaqueductal region of the mesencephalon have long been recognized as a potential cause of late-onset aqueductal stenosis [1]. Because of their location and elusive characteristics on computerized tomography (CT) (i.e.…”

Section: Introductionmentioning

confidence: 99%

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Management of Intrinsic Gliomas of the Tectal Plate in Children

et al. 1999

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The natural history, management, and long-term outcome for patients with benign, intrinsic tectal plate gliomas remain controversial in spite of their propensity to cause late-onset hydrocephalus. A 10-year retrospective review has identified 11 consecutive children with tectal plate lesions. Headache, vomiting, a decline in school performance, tremor, and complex partial seizures were common presenting symptoms. All patients presented with signs and symptoms of hydrocephalus. Magnetic resonance (MR) imaging delineated an intra-axial mass lesion of the midbrain primarily localized to the tectal plate which uniformly was hyperintense on T2-weighted imaging and had a more variable appearance on T1-weighted imaging and rare enhancement with gadolinium. No patient underwent surgical resection, chemotherapy, or radiotherapy. Three of 11 patients (27%) showed evidence of progression in size or a new focus of enhancement on MR imaging, which was clinically asymptomatic. In this series, no patient with a tectal plate lesion less than 1.5 cm in maximal diameter and without gadolinium enhancement showed any evidence of clinical or radiological progression. Although intrinsic tectal lesions in children are clinically indolent and the initial management consists of CSF diversion, these lesions may eventually progress and still warrant long-term follow-up with serial MR imaging.

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Section: Discussionmentioning

confidence: 65%

Section: Introductionmentioning

confidence: 99%

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Management of Intrinsic Gliomas of the Tectal Plate in Children

et al. 1999

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“…It appears that gliomas located in the tectum and peri aqueductal region of the midbrain may be another more benign subgroup of brainstem tumors [5,6]. Clinically, the behavior of these tumors is consistently favorable.…”

Section: Discussionmentioning

confidence: 84%

Gliomas of the Tectum and Periaqueductal Region of the Mesencephalon

et al. 1991

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Gliomas that arise in the tectal and periaqueductal region of the mesencephalon usually present with hydrocephalus secondary to occlusion of the aqueduct of Sylvius. A review of 486 brain tumors in children treated during a 5-year period revealed 6 children with gliomas of the tectal plate. The 6 children were shunted for hydrocephalus, presumed secondary to aqueductal stenosis, prior to establishing the diagnosis of tectal plate glioma. No abnormalities were noted on the initial, uncontrasted computed tomography (CT) scans. The tumors are isodense without contrast enhancement which makes the CT diagnosis difficult. Magnetic resonance imaging (MRI) is diagnostic and demonstrates the characteristic enlargement of the tectum with increased density on T2 images. T1 density and gadolinium enhancement are variable. Pathological confirmation was obtained by open biopsy in 2 patients, a stereotaxic biopsy was performed on 2 children; 2 children were not biopsied. The tumor histology obtained was that of pilocytic astrocytoma. Two patients were treated with radiation therapy at the time of diagnosis. One child was followed closely and subsequently irradiated after tumor progression. All patients in this series are alive and functioning adequately 2–10 years after the onset of symptoms.

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“…The classic presentation is rapidly progressive brain stem dysfunction -usually multiple, long tract cranial nerve and cerebellar dysfunction -in a child aged 5-8 years [32], The sixth and seventh cranial nerves are most often involved, and in 70% of cases the involvements are mul tiple and/or bilateral. The age of onset, clinical presen tation, and the amount of brain stem involvement is quite variable [1,3,6,10,13,14,17,18,29,36,38,39,41,[45][46][47][48]50]. Adolescents and adults are more likely to present with a slower onset of symptoms and more iso lated brain stem dysfunction.…”

Section: Clinical Featuresmentioning

confidence: 99%

Current Management of Brain Stem Gliomas

Edwards¹,

Prados²

1987

Pediatr Neurosurg

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Brain stem gliomas constitute 10–20% of central nervous system tumors in children. Management of these tumors remains controversial. In general, the prognosis for long-term survival is poor, but brain stem gliomas represent a heterogeneous population of tumors, some of which have a better prognosis than others. Improvements in diagnostic imaging techniques, particularly the availability of magnetic resonance imaging, provide the means to differentiate among these populations. Advances in radiation therapy may provide the means to improve survival. In this article we review the reported series and the present state of the art for the diagnosis and management of children with brain stem gliomas.

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Pencil gliomas of the aqueduct of Sylvius

Cited by 44 publications

References 13 publications

Management of Intrinsic Gliomas of the Tectal Plate in Children

Management of Intrinsic Gliomas of the Tectal Plate in Children

Gliomas of the Tectum and Periaqueductal Region of the Mesencephalon

Current Management of Brain Stem Gliomas

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