问题:
...,男孩。左膝肿痛,活动...热。检查左膝关节明显红...X线片示左膝关节间隙增...
...,男孩。左膝肿痛,活动...热。检查左膝关节明显红...X线片示左膝关节间隙增...
参考答案: