患者,男,42岁,发现右颈部肿块12年,约2cm×2cm,后缓慢增大,治疗后未见缩小。2010年起偶有局部疼痛,近3个月疼痛放射到右耳、右肩。2012年1月30日入我科体检:右颈部下颌角下方可扪及5cm×4cm肿物,质中等,表面光滑,边界不清,活动差,无明显搏动,未闻及血管杂音,未扪及明显肿大淋巴结。颈部B超示:右颈部至颌下见的实质性稍高回声肿块,边界 The patient, male, 42 years old, found a right neck mass for 12 years, about 2 cm × 2 cm, and then slowly increased. No reduction was seen after treatment. Occasionally local pain since 2010, nearly 3 months of pain radiating to the right ear, right shoulder. January 30, 2012 into our physical examination: the right neck below the mandibular angle palpable 5cm × 4cm tumor, medium quality, smooth surface, the border is unclear, poor activity, no obvious beats, no smell and vascular murmur, no Palpable palpable lymph nodes. Neck B ultrasound shows: the right neck to submandibular see slightly higher echo mass, the border