ArticleRadiology case reports2021
A solitary extraventricular subependymal giant cell astrocytoma in the absence of tuberous sclerosis.
Article in Radiology case reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 5 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
5 citing papers in PubMed, 8 citations in OpenAlex.
- Occipital lobe glial and glioneuronal tumors: A systematic review of clinical presentation, surgical management, and outcomes.Surgical neurology international · 2026Review
- Subependymal giant cell astrocytoma in the absence of tuberous sclerosis complex: illustrative case.Journal of neurosurgery. Case lessons · 2025Article
- Glycoprotein nonmetastatic melanoma protein b immunohistochemistry can be a useful ancillary tool to diagnose subependymal giant cell astrocytoma.Virchows Archiv : an international journal of pathology · 2025Article
- Bleeding solitary SEGA in non-tuberous sclerosis complex adolescent: a case illustration and review of literature.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2024Review
- Subependymal giant cell astrocytoma in the absence of tuberous sclerosis: illustrative case.Journal of neurosurgery. Case lessons · 2023Article
Corrections and comments
- Erratum issued
Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Subependymal giant cell astrocytomas (SEGAs) are the most common intracranial tumors in Tuberous Sclerosis Complex (TSC). Very few cases of solitary SEGA without a diagnosis of TSC have been described. Most of these previously reported solitary SEGAs were located near the caudothalamic groove or in close proximity to the lateral ventricles. Here, we describe a unique case of solitary extraventricular SEGA in a 17-year-old boy who presented with new-onset seizures in the absence of the clinical and genetic diagnosis of TSC. This extraventricular SEGA was involving white matter and cortex of the occipital lobe and was predominantly hypointense on T1 and T2-weighted images with a markedly hypointense signal on susceptibility-weighted images likely secondary to dense internal calcifications. Solitary SEGA can occur in the extraventricular location in patients without TSC and should be included in the differential diagnosis of a densely calcified supratentorial intra-axial tumor in children, especially during the second decade of life.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.