Metastatic tumors in the cerebellopontine angle (CPA) are rare. These uncommon secondary malignant deposits arise mostly from primary disease in the breast or lung. A case of metastatic adenocarcinoma of unknown origin affecting the CPA is described. In this case, unilateral persistent facial palsy of sudden onset was the only sign in the first two years, followed by ipsilateral vocal palsy. No definitive diagnosis was made until a head MRI was arranged when another three cranial nerves, the 9th, 10th, and 11th, devel-oped paralysis. Image study revealed a small CPA tumor, which was surgically removed and found to be a metastatic adenocarcinoma. Thus, idiopathic persistent facial palsy may arise the suspicion of a metastatic neoplasm in the cerebellopontine angle.