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KMID : 0942820040030020133
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Journal of Korean Brain Tumor Society
2004 Volume.3 No. 2 p.133 ~ p.137
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Difficulties in Diagnosing Cerebellar Midline Tumors Preoperatively：Two Case Reports
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Hwang Sun-Chul
Kim Bum-Tae
Im Soo-Bin
Shin Won-Han
Koh Eun-Seok
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Abstract
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The exact preoperative diagnosis in the cerebellar midline tumor is crucial to design the operative plan such as the
extent of tumor resection, preservation of critical structures, and need to be shunt. We experienced 2 cases, which were
suspected as usual radiologic diagnoses but were revealed as rare entities in the pathology. A 15-year-old child presented with sudden headache while he was studying. The features of radiologic images suggested the hematoma caused by the underlying lesion. Medulloblastoma, cavernous hemangioma, and ependymoma were suspected. After operation, pathology revealed it to be hemorrhagic pilocytic astrocytoma. A 40-year-old woman suffered from lasting headache and ataxia. In the radiologic finding, it was a huge cystic mass with a mural nodule. We took into consideration cerebellar tumor such as dermoid cyst, hemangioblatoma, or cystic astrocytoma. The pathologic diagnosis was the mature teratoma. These rare entities of pathology occurred in the cerebellar midline region should be considered in the progress of diagnosis and we will review it with pertinent literatures.
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KEYWORD
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Cerebellum, Astrocytoma, Teratoma
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