第四脑室非典型表皮样囊肿,弥散限制极小。

IF 1.3 4区 医学 Q4 CLINICAL NEUROLOGY Child's Nervous System Pub Date : 2024-11-01 Epub Date: 2024-07-29 DOI:10.1007/s00381-024-06553-y
Rose Fluss, Rianna Lo Bu, Mandana Behbahani
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引用次数: 0

摘要

背景:表皮样囊肿是一种良性、生长缓慢的轴外病变,最常见于小脑脑角,在弥散加权成像(DWI)中具有弥散受限的特征性成像模式:一名有哮喘和糖尿病病史的 10 岁男性在脑部磁共振成像(MRI)检查中发现第四脑室内有病变。核磁共振成像显示,该病灶为环状蚓部病变,无造影剂增强或弥散受限,伴有轻度脑积水。他在出现急性头晕症状后被转诊至神经外科。他接受了病灶大体全切除术,组织病理学证实为表皮样囊肿:在此,我们报告了一例在第四脑室中线发现的非典型表皮样囊肿病例,其磁共振成像无局限性弥散:结论:在评估轴外病变时,DWI上的弥散受限通常是表皮样囊肿的病理标志,但我们报告了文献中第二例无此经典成像特征的表皮样囊肿。
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Atypical epidermoid cyst of the fourth ventricle with minimal diffusion-restriction.

Background: Epidermoid cysts are benign, slow growing extra-axial lesions most commonly found in the cerebellopontine angle that have a characteristic imaging pattern of restricted diffusion on diffusion-weighted imaging (DWI).

Methods: A 10-year-old male with a history of asthma and diabetes was found to have a lesion within the fourth ventricle on a magnetic resonance imaging (MRI) brain study. MRI showed a well-circumscribed vermian lesion without contrast enhancement or restricted diffusion with mild hydrocephalus. He was referred to the neurosurgical service once he acutely developed symptoms of dizziness. He underwent a gross-total resection of the lesion on which histopathology confirmed an epidermoid cyst.

Results: Here, we report a case of an atypical epidermoid cysts found in the midline of the fourth ventricle without restricted diffusion on MRI.

Conclusion: Avid restricted-diffusion on DWI is usually pathognomonic for an epidermoid cyst when evaluating an extra-axial lesion, yet we report the second case in the literature of an epidermoid cyst without this classical imaging characteristic.

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来源期刊
Child's Nervous System
Child's Nervous System 医学-临床神经学
CiteScore
3.00
自引率
7.10%
发文量
322
审稿时长
3 months
期刊介绍: The journal has been expanded to encompass all aspects of pediatric neurosciences concerning the developmental and acquired abnormalities of the nervous system and its coverings, functional disorders, epilepsy, spasticity, basic and clinical neuro-oncology, rehabilitation and trauma. Global pediatric neurosurgery is an additional field of interest that will be considered for publication in the journal.
期刊最新文献
Correction: Imaging features of pediatric meningiomas: emphasis on unusual locations. Correction: Occipital encephalocele: a retrospective analysis and assessment of post-surgical neurodevelopmental outcome. Radiographic severity is associated with worse executive function in metopic craniosynostosis. Occipital encephalocele: a retrospective analysis and assessment of post-surgical neurodevelopmental outcome. Vaulting further: cranial vault expansion for craniocerebral disproportion without primary craniosynostosis.
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