例1,女,9岁。8个月前左足趾被砖砸伤,当时趾甲下流血,处置后痊愈。一个月后自觉趾甲不适,发现前内侧趾甲向上翘起,缘前有一突起小包块,无疼痛。8个月后该肿物增长并突出甲下,因磨擦而感染,遂来诊。查:左趾前内侧缘有一鲜红色肿物,表面轻度感染,无表皮覆盖,无触痛,无活... Example 1, female, 9 years old. 8 months ago, the left toe was brushed, then bleeding under the toenails, healed after treatment. A month later conscious nails uncomfortable, found that before the medial toenail upturned, there is a protruding mass in front of a small mass, no pain. After 8 months the tumor grew and accentuated and was infected due to friction and came to the clinic. Check: the left toe medial margin of a bright red tumor, the surface mild infection, no epidermal coverage, no tenderness, no live ...