A sixteen-year-old male patient applied to our outpatient clinic with a painful mass on his right big toe. His complaint had been present for four months. There was no history of preceding trauma or bleeding. Cryotherapy had been applied to the lesion under the assumption that it was a pyogenic granuloma. Personal and family histories were unremarkable. Routine physical examination findings were normal. Dermatological examination revealed a hard, fixed, painful, 1 x 1 cm nodule with superficial erosion on the medial aspect of the tip of his right big toe [Figure la]. A radiographic examination revealed a calcified lesion on the dorsomedial part of the distal phalanx continuing along the underlying bone [Figure 1b].
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机译：一名16岁的男性患者在我们的门诊部就诊，右脚趾大块疼痛。他的投诉已经存在四个月了。没有先前的创伤或出血史。在病变为化脓性肉芽肿的前提下，对其进行了冷冻治疗。个人和家庭的历史并不明显。常规体检结果正常。皮肤科检查显示，他的右大脚趾尖端内侧有一个硬的，固定的，疼痛的1 x 1 cm结节，表面有糜烂[图1a]。影像学检查发现远端指骨的背侧部分沿底层骨有钙化病变[图1b]。
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