Bilateral Cerebellopontine Angle Metastases of Colon Cancer: A Case Report

結腸癌併兩側小腦橋腦角轉移－病例報告

10.6440/TZUCMJ.200012.0277

王成平(Cheng-Ping Wang)；楊怡和(Yi-Ho Young)

結腸癌 ； 突發性聽力喪失 ； 小腦橋腦角 ； 轉移腫瘤 ； colon cancer ； sudden hearing loss ； cerebellopontin angle ； metastatic tumor

慈濟醫學雜誌

12卷4期（2000 / 12 / 01）

277 - 280

英文

結腸癌轉移到小腦橋腦角相當罕見。本文報告一68歲男結腸癌患者，在大腸手術16個月後，發生左耳突發性聽力喪失。第一次核磁共振檢查顯示顱內無明顯病兆。然而，在接下來的6個月內，患者出現左側顏面神經麻痺及兩側聽力惡化的現象。此時，第二次的核磁共振檢查則出現兩側小腦橋腦角腫瘤。故當癌症病人出現突發性聽力喪失時，必須安排核磁共振檢查以排除小腦橋腦角轉移或腦膜性癌的可能性。當第一次核磁共振檢查沒有發現異常，但聽力再度惡化時，則極須再安排核磁共振檢查或腦脊髓液檢查以佐證之。

A cerebellopontin angle (CPA) metastatic tumor from colon cancer is extremely rare. This paper reports on a 68 year-old man who experienced sudden hearing loss in his left ear, 16 months after surgery fro colon cancer. The initial MRI scan failed to find anything significant in the cranial fossa. However, within 6 months, left facial plalsy and deterioration of bilateral hearing developed. Repeated MRI scan finally disconvered bilateral CPA tumors. Therefore, when a cancer patient has sudden hearing loss, an MRI scan should be carried out to confirm CPA metastasis or meningeal carcinomatosis. If the scan reveals nothing particular, but hearing still deteriorates, CSF cytology or repeated MRI scan should be performed.