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Journal of Korean Neurosurgical Society > Volume 49(6); 2011 > Article
Journal of Korean Neurosurgical Society 2011;49(6): 363-366.
doi: https://doi.org/10.3340/jkns.2011.49.6.363
Cerebellar Pilocytic Astrocytomas with Spontaneous Intratumoral Hemorrhage in Adult.
Min Su Kim, Sang Woo Kim, Chul Hoon Chang, Oh Lyong Kim
Department of Neurosurgery, Yeungnam University College of Medicine, Daegu, Korea. olkim@med.yu.ac.kr
ABSTRACT
Cerebellar pilocytic astrocytomas (PAs) are benign gliomas predominantly found in the pediatric population. Intracranial hemorrhages are extremely rare in initial presentations of cerebellar PAs. There are no reports in the medical literature of adult cerebellar PA cases presenting with intratumoral hemorrhage. We report 2 cases of adult cerebellar pilocytic astrocytomas with intratumoral hemorrhage. The first case is a 37-year-old woman presenting with severe headache, nausea, and vomitting. Computed tomography demonstrated an acute hemorrhage adjacent to the right cerebellar hemisphere and hydrocephalus. Magnetic resonance imaging (MRI) revealed a cerebellar vermian tumor with the hemorrhage as a mixed isointense area in the T2-weighted image, and as a mixed hyperintense area in the contrast-enhanced T1-weighted image. The second case is a 53-year-old man presenting with headache for 3 weeks. MRI revealed a cerebellar hemispheric tumor with the hemorrhage as a mixed hyperintense area. It had a cystic mass with a heterogeneous enhanced mural nodule in the gadolinium-enhanced T1-weighted image and a fluid-fluid level within the cyst in the T2-weighted image. Both of them underwent radical resections of their respective lesions. Histological examination of the specimens revealed typical astrocytoma, including a hemorrhagic portion. Both patients recovered postoperatively and continue to do well at present. The medical literature on hemorrhagic cerebellar PAs is also reviewed.
Key Words: Pilocytic astrocytoma; Hemorrhage; Cerebellum; Adult
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