1临床资料患者女,32岁。右手无名指甲下包块伴疼痛2年。患者自诉2年前右手无名指指甲变软,甲根部暗红色斑,主要表现为局部压痛、自发性明显,持续数分钟后自行缓解,遇冷及夜间疼痛尤为明显,病情逐渐加重。在当地医院均未明确诊断,给予盐酸曲马多片对症治疗,病情未见好转。体检:一般情况尚可,心、肺、腹部检查末见异常。皮肤科情况:右手无名指指甲变软,甲根部暗 1 clinical data, female, 32 years old. Right nails under the nail with the pain 2 years. Patient self-voction 2 years ago, the right hand fingernails become soft, nail dark red spots, mainly for local tenderness, spontaneous obvious, continued to relieve itself after a few minutes, especially in cold and nocturnal pain, the condition gradually aggravated. In the local hospital did not confirm the diagnosis, given tramadol hydrochloride symptomatic treatment, the condition did not improve. Physical examination: the general situation is acceptable, heart, lung, abdominal examination end abnormalities. Dermatological conditions: the right hand fingernails become soft, dark roots