A 34 year old male presented with tumefaction, draining sinuses, and a subcutaenous tendon mass around his left knee 1 year after a motorcycle accident.

• 患者男,34岁,左膝外伤后1年局部皮下组织出现红肿、硬化、窦道流脓、肌腱肿块、伴腹股沟淋巴结肿大。