Pilocytic astrocytoma of the cerebellopontine angle mimicking vestibular schwannoma: report of a rare entity

Dutta, Gautam; Singh, Daljit; Singh, Hukum; Sachdeva, Deepashu; Kumar, Vikas; Chaturvedi, Ashutosh

doi:10.1080/02688697.2017.1419163

Cited by 6 publications

(5 citation statements)

References 7 publications

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“…But in the present case, the primary tumor was located in the CPA. The case reported by Dutta et al 1 is similar to the one herein reported because of the size and imaging findings of the primary tumor, but it differs from our case due to the absence of evidence of CSF spread.…”

Section: Discussionsupporting

confidence: 83%

“…Another theory is that the tumor originates primarily in the transformation of heterotopic neuroglial cell nests in the leptomeninges covering the proximal cranial nerves. 1 3 5 In the current case, there was no history of intraparenchymal glioma and no intraoperative evidence of an anatomic association to the lateral recess of the fourth ventricle. We believe that the tumor most probably originates from neuroglial cells.…”

Section: Discussionmentioning

confidence: 55%

“…They are seldom seen within the CPA. 1 In the literature, they are often the exophytic extension of the primary brainstem or cerebellar PAs at this location. Reports of primary extra-axial PA are extremely rare.…”

Section: Introductionmentioning

confidence: 99%

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Pilocytic Astrocytoma of the Cerebellopontine Angle with cerebrospinal fluid Spread in an Adult: A Case Report

Bıyıklı

Kursun

Oguzsoy

et al. 2022

Arquivos Brasileiros de Neurocirurgia: Brazilian Neurosurgery

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Introduction Pilocytic astrocytoma of the cerebellopontine angle (CPA) is uncommon, and its spread to the cerebrospinal fluid (CSF) at the time of diagnosis has not been reported in the literature. Case Presentation We report the case of a 33-year-old man with multifocal pilocytic astrocytoma diagnosed by magnetic resonance imaging (MRI) and confirmed by histopathological examination, and present the radiological and histopathological findings. Conclusion In the case herein reported, we observed spread of the pilocytic astrocytoma of the CPA to the CSF at the initial diagnosis, and early detection by MRI is very important regarding the treatment modality and prognosis.

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Section: Discussionsupporting

confidence: 83%

Section: Discussionmentioning

confidence: 55%

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Pilocytic Astrocytoma of the Cerebellopontine Angle with cerebrospinal fluid Spread in an Adult: A Case Report

Bıyıklı

Kursun

Oguzsoy

et al. 2022

Arquivos Brasileiros de Neurocirurgia: Brazilian Neurosurgery

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“…Advanced neuroimaging techniques play a critical role in the evaluation of adult-onset PCAs. Magnetic resonance imaging (MRI) with contrast enhancement remains pivotal, providing detailed anatomical information and aiding in differential diagnosis [ 32 , 33 , 34 , 35 ]. Characteristic MRI features of PCA may include a cystic mass with a mural nodule and well-defined margins.…”

Section: Discussionmentioning

confidence: 99%

Hypothalamic Hemangioma-like Pilocytic Astrocytoma in an Adult Patient: A Systematic Review with a Focus on Differential Diagnosis and Neurological Presentation

Costanzo,

Rosetti,

Tomassini

et al. 2024

JCM

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Background: Pilocytic astrocytoma (PCA) are commonly observed as slow-growing noncancerous brain tumors in pediatric populations, but they can also occur in adults, albeit rarely. When located in diencephalic regions, particularly in the hypothalamus, they present unique diagnostic and management challenges due to their rarity and overlapping clinical and radiological features with other intracranial pathologies. This systematic review aims to provide a comprehensive understanding of hypothalamic PCA in adults, focusing on their differential diagnosis, neurological presentation, diagnostic modalities, treatment strategies. A case illustration is also described in order to better underline all the difficulties related to the diagnostic process. Material and methods: A systematic literature search was conducted in the PubMed/MEDLINE, Embase, and Scopus databases up to November 2023 to identify studies. Results: The systematic literature search identified a total of 214 articles. Following screening by title and abstract and full-text review, 12 studies were deemed eligible and are included here. Conclusions: Adult-onset PCA in diencephalic regions pose diagnostic challenges due to their rarity and overlapping features with other intracranial lesions. Advanced imaging techniques play a crucial role in diagnosis, while surgery remains the cornerstone of treatment. Multidisciplinary collaboration is essential for the optimal management and long-term follow-up of these patients.

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“…After an extensive Medline search, we could find only three cases of primary extra-axial pilocytic astrocytoma of the cerebellopontine angle (CPA) reported till now [1][2][3]. We recently encountered a right CPA pilocytic astrocytoma arising from the eighth cranial nerve, completely separated from the brain stem in a 23-yearold lady.…”

Section: Introductionmentioning

confidence: 99%

Pilocytic astrocytoma of the cerebellopontine angle: a rare case

et al. 2022

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Background Pilocytic astrocytomas are the most common primary brain tumors in children. Most of the lesions occur in or near the midline. They are rare in extra-axial locations. Case presentation We report a 23-year-old lady who was found to have progressive right-sided sensorineural hearing loss and features of raised intracranial pressure due to a pilocytic astrocytoma of the right cerebellopontine angle. After an extensive Medline search, we could find only three cases of primary extra-axial pilocytic astrocytoma of the cerebellopontine angle (CPA) reported till now. Conclusion Even a rare occurrence, primary pilocytic astrocytoma, and in general gliomas, should be kept in mind in the differential diagnosis of CPA lesions.

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Pilocytic astrocytoma of the cerebellopontine angle mimicking vestibular schwannoma: report of a rare entity

Abstract: We present a rare case of a 55-yr old patient of pilocytic astrocytoma of the cerebello-pontine angle mimicking a vestibular schwannoma. The tumor protruded into the porus acusticus causing enlargement of the internal auditory meatus, which is quite an unusual feature of glial tumours.

Cited by 6 publications

References 7 publications

Pilocytic Astrocytoma of the Cerebellopontine Angle with cerebrospinal fluid Spread in an Adult: A Case Report

Pilocytic Astrocytoma of the Cerebellopontine Angle with cerebrospinal fluid Spread in an Adult: A Case Report

Hypothalamic Hemangioma-like Pilocytic Astrocytoma in an Adult Patient: A Systematic Review with a Focus on Differential Diagnosis and Neurological Presentation

Pilocytic astrocytoma of the cerebellopontine angle: a rare case

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