Objective: The aim is to study clinical feature, diagnosis, therapy and prognosis of malignant pleomorphic adenoma (MPA) of tongue base with bilateral cervical lymph node metastasis.

目的：研究舌根恶性多形性腺瘤（MPA）双侧颈淋巴结内癌转移的临床表现、诊断、治疗及预后。

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Objective To investigate the causes of recurrence and malignant change of pleomorphic adenoma (benign mixed tumour) of lacrimal gland.

目的探讨泪腺良性多形性腺瘤术后易复发和恶性变的原因。

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