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患者男， 35岁，四川新都县农民，因右内踝及周围皮肤长肉芽肿 4年余就诊。患者右内踝皮肤长小结节并逐渐向周围扩大形成肉芽肿，有黄色液体流出伴结痂、疼痛及踝关节活动受限，否认外伤史。体检：右内踝有 2.5 cm× 5.0 cm近三角形和 2.0 cm× 4.5 cm近菱形暗红色隆起性肉芽肿
Male patient, 35 years old, farmer in Xindu County, Sichuan Province, was treated for more than 4 years with long granulomas in the right medial malleolus and the surrounding skin. Patients with long medial malleolus skin nodules and gradually expand to the surrounding granuloma formation, there is a yellow liquid out with crusting, pain and ankle joint activity is limited, denied the history of trauma. Physical examination: the right medial malleolus has 2.5 cm × 5.0 cm nearly triangular and 2.0 cm × 4.5 cm near the rhombus dark red raised granuloma