耳前及下颌后区肿块常代表腮腺肿瘤,而很少考虑其他诊断。但鉴别诊断应包括:皮肤及皮下组织的病变,腮腺及腮腺旁淋巴结,嚼肌,下颌,咽旁区结构,颈椎甚至颅内肿瘤通过颅底的孔伸入颈部。 Ear and post-mandibular masses often represent parotid gland tumors and rarely consider other diagnoses. However, differential diagnosis should include: skin and subcutaneous tissue lesions, parotid glands and parotid lymph nodes, chewing muscles, mandibular, parapharyngeal structure, cervical and even intracranial tumors through the skull base hole into the neck.