作者报告4例非典型分支杆菌引起的皮肤感染,这些罕见感染的自然史和临床表现可能有助于普外医生作出正确诊断。4例中2男2女,年龄27～73岁,2例有类固醇应用史,2例既往健康。2例为小腿外伤后感染,另2例为大腿注射部位脓肿;后者因应用类固醇提示有 The authors report 4 cases of skin infections caused by atypical mycobacteria. The natural history and clinical manifestations of these rare infections may help general practitioners make correct diagnosis. 4 cases, 2 males and 2 females, aged 27 to 73 years old, two cases of steroid use history, 2 cases of past health. 2 cases of post-traumatic infection, and the other 2 cases of thigh injection site abscess; the latter due to the use of steroid tips have