MR imaging of brain pilocytic astrocytoma: beyond the stereotype of benign astrocytoma

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• 作者：Simona Gaudino ; Matia Martucci ; Rosellina Russo…
• 关键词：Pilocytic astrocytoma ; MR perfusion ; Pediatric ; Brain ; Tumor ; MR spectroscopy
• 刊名：Child's Nervous System
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：33
• 期：1
• 页码：35-54
• 全文大小：
• 刊物类别：Medicine
• 刊物主题：Neurosurgery; Neurosciences;
• 出版者：Springer Berlin Heidelberg
• ISSN：1433-0350
• 卷排序：33

文摘

BackgroundPilocytic astrocytoma (PA) is the most common pediatric brain glioma and is considered the prototype of benign circumscribed astrocytoma. Despite its low malignancy, the CT and MRI features of brain PA may resemble those of much more aggressive brain tumors. Misdiagnosis of PA is particularly easy when it demonstrates MR morphological and non-morphological findings that are inconsistent with its non-aggressive nature and that overlap with the features of more aggressive brain tumors.