患者,男,65岁。2006年4月发现左侧耳屏前方一肿物,约鸡蛋黄大小伴疼痛,自行应用抗生素20d后疼痛消失,肿物略缩小。在当地医院行CT检查示左侧耳屏前方腮腺部位占位性病变,CT值24.54HU。来我院求治。10年前曾患胸膜炎(是否为结核性胸膜炎诉不清)。体检:体温36.8℃,左侧耳屏前方可 Patient, male, 65 years old. April 2006 found a tumor in front of the left tragus, about the size of egg yolk with pain, antibiotics applied to their own pain after 20d disappeared, the tumor slightly smaller. In the local hospital line CT examination showed left parietal lesions in front of the left ear lesions, CT value 24.54HU. Come to our hospital for treatment. 10 years ago suffering from pleurisy (tuberculous pleurisy v. Unclear). Physical examination: body temperature 36.8 ℃, the left front of the tragus can be