临床资料患者,男,51岁。主因右足部散在结节、肿物半年,于2013年12月21日就诊。半年前,左足内侧外伤后皮肤感染,患者未予以重视。后感染部位出现粟粒大小的褐色丘疹,自觉无痛痒,逐渐增大,生长速度较快;2个月前部分丘疹增大至直径为1 cm的结节,周围散在粟粒大小的褐色丘疹,无不适;1个月前患者出现纳差、反酸、腹胀、便秘等不适感觉,体重1个月内下降5 kg。体格检查:一般情况 Clinical data patients, male, 51 years old. The main right foot scattered nodules, tumor six months, on December 21, 2013 treatment. Six months ago, the skin inside the left foot trauma after infection, the patient did not pay attention. Mucous brown papules were found in the infected area, which gradually increased and grew rapidly. Two months earlier, the papules increased to 1 cm in diameter, with brown papules scattered around the mites without discomfort ; 1 month ago patients with anorexia, acid reflux, abdominal distension, constipation and other discomfort, weight loss within a month 5 kg. Physical examination: the general situation