临床资料:患者,男,40岁。右上胸部近胸锁关节处包块10余年,表面尚光整,皮肤无红肿,时有隐痛。近半年来此包块生长迅速,范围扩大,形态不规则,疼痛加剧,表皮常出现破溃渗出,长期不愈。检查:右上胸部见一以胸锁关节为中心向左、右两侧方向生长的包块,质地坚硬,不活动,压之疼痛明显 Clinical data: Patient, male, 40 years old. The right upper chest near the sterno-clavicular joint mass for more than 10 years, the surface is still smooth, the skin is not red and swollen, and sometimes there is pain. In the past six months, this mass has grown rapidly, has expanded in scope, is irregular in shape, and has increased pain. The epidermis is often crumbling and oozing, and it has become chronically unrecoverable. Examination: The upper right chest sees a mass that grows to the left and right sides centered on the sternoclavicular joint. The texture is hard, inactive, and the pressure is marked.