CHENG-PING WANGYI-HO YOUNG2020-11-032020-11-0320001016-3190https://www.scopus.com/inward/record.uri?eid=2-s2.0-0034453586&partnerID=40&md5=49e14f6a425e08d0536dc6e89e7a6822https://scholars.lib.ntu.edu.tw/handle/123456789/520375A cerebellopontine 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 for colon cancer. The initial MRI scan failed to find anything significant in the cranial fossa. However, within 6 months, left facial palsy and deterioration of bilateral hearing developed. Repeated MRI scan finally discovered bilateral CPA tumors. Therefore, when a cancer patient has sudden hearing loss, an MRI scan should be carded 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.Cerebellopontine angle; Colon cancer; Metastatic tumor; Sudden hearing loss[SDGs]SDG3fluorouracil; folinic acid; aged; article; brain metastasis; cancer combination chemotherapy; cancer surgery; carcinomatous meningitis; case report; cerebrospinal fluid cytology; clinical feature; colon adenocarcinoma; diagnostic imaging; diagnostic procedure; differential diagnosis; disease course; facial nerve paralysis; hearing loss; human; male; nuclear magnetic resonance imaging; pons angle tumor; treatment outcomejournal article2-s2.0-0034453586