面侧深区肿瘤一般多发生于腮腺深叶、咽旁间隙、颞下间隙及颅底等部位。肿瘤可为良性或恶性。较大者可同时波及二个或二个以上解剖区域。目前,通过各种现代化手段诊断这些部位的肿瘤并不困难。但由于面侧深区外侧存在着下颌角、下颌升支、颧骨及颧弓等骨性阻挡。因此,给肿瘤的手术摘除增加了很大困难。我们都知道, Deep-surface tumors usually occur in deep parotid glands, parapharyngeal space, infraorbital space, and skull base. The tumor can be benign or malignant. The larger one can affect two or more anatomical regions at the same time. At present, it is not difficult to diagnose these tumors through various modern methods. However, due to the presence of mandibular angle, mandibular ascending branch, zygomatic and zygomatic arch, etc. Therefore, the surgical removal of tumors adds great difficulty. we all know,