소뇌교각부에 발생한 원발성 림프종 -증례보고- = Primary Central Nervous System Lymphoma Presenting as Cerebellopontine Angle Lesion：A Case Report

다국어 초록 (Multilingual Abstract)

Although malignant lymphomas of the central nervous system(CNS) have been reported with increasing frequency, cerebellopontine angle(CPA) lymphoma is extremely rare. Primary CNS lymphoma(PCNSL) usually presents deep within the cerebral hemispheres, is occasionally found in the cerebellum, and rarely occurs in the CPA. A 47-year-old woman had progressive right facial palsy for 2 months. Imaging study revealed a mass lesion in the right CPA, which was compressing the lateral-dorsal aspect of the pons and the fourth ventricle. The tumor was surgically removed. However, the mass recurred around the previous site 2 months after the surgery. Radiation therapy was performed after the final diagnosis was confirmed by histologic examination as diffuse large B-cell type malignant lymphoma. Although malignant lymphomas rarely occurred in the CPA, it should be considered in the differential diagnosis of CPA tumors, because it does not require aggressive removal.