查看“肺转移”的源代码

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            <strong>肺转移</strong>（Lung Metastasis）是指原发于身体其他部位的恶性肿瘤细胞经血液或淋巴循环传播至肺部，并在肺实质或间质内定植生长的病理过程。肺是全身血液循环的“过滤器”，因此是胸外恶性肿瘤（如乳腺癌、结直肠癌、肾癌、骨肉瘤）最常见的转移靶器官之一。临床上，肺转移早期常无明显症状，多由随访 CT 发现。确诊肺转移的关键在于区分其与[[原发性肺癌]]，这通常需要依赖<strong>影像学特征</strong>（多发、圆球状）和<strong>病理免疫组化</strong>（IHC）标记物来锁定原发灶来源。
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            <div style="font-size: 1.2em; font-weight: bold; letter-spacing: 1.2px;">肺转移</div>
            <div style="font-size: 0.7em; opacity: 0.85; margin-top: 4px; white-space: nowrap;">Metastatic Tumor to the Lung (点击展开)</div>
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                    [[Image:Lung_metastasis_pathology_diagram.jpg|100px|病理示意：来源于肠道的腺癌细胞巢]]
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                <div style="font-size: 0.8em; color: #64748b; margin-top: 12px; font-weight: 600;">核心：异源性恶性肿瘤</div>
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                    <th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0; width: 40%;">常见来源</th>
                    <td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;">[[乳腺]], [[结直肠]], [[肾]], [[骨]]</td>
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                    <th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;">传播途径</th>
                    <td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #1e40af;">[[肺动脉]] (血行) > 淋巴道</td>
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                    <th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;">临床症状</th>
                    <td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;">90%无症状；咳嗽、气短</td>
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                    <th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;">肠癌标记</th>
                    <td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #b91c1c;">[[CDX2]] (+), [[CK20]] (+)</td>
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                    <th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569; border-bottom: 1px solid #e2e8f0;">乳腺标记</th>
                    <td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #b91c1c;">[[GATA3]] (+), [[Mammaglobin]]</td>
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                    <th style="text-align: left; padding: 6px 12px; background-color: #f1f5f9; color: #475569;">治疗基石</th>
                    <td style="padding: 6px 12px; color: #0f172a;">全身系统治疗</td>
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    <h2 style="background: #f1f5f9; color: #0f172a; padding: 10px 18px; border-radius: 0 6px 6px 0; font-size: 1.25em; margin-top: 40px; border-left: 6px solid #0f172a; font-weight: bold;">核心鉴别：免疫组化 (IHC) 寻踪</h2>
    
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        当肺部发现结节且患者有肿瘤病史时，不能想当然地认为是转移。<strong>病理活检</strong>结合<strong>免疫组化</strong>是判断“原发 vs 转移”及“转移自哪里”的金标准。
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                <th style="padding: 12px; border: 1px solid #cbd5e1; color: #0f172a; width: 25%;">原发灶来源</th>
                <th style="padding: 12px; border: 1px solid #cbd5e1; color: #475569;">特征性 IHC 标记物组合</th>
                <th style="padding: 12px; border: 1px solid #cbd5e1; color: #1e40af;">TTF-1 (肺特异性)</th>
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                <td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">[[原发性肺腺癌]]</td>
                <td style="padding: 10px; border: 1px solid #cbd5e1;"><strong>Napsin A (+)</strong>, CK7 (+)</td>
                <td style="padding: 10px; border: 1px solid #cbd5e1; color: #16a34a; font-weight: bold;">阳性 (+)</td>
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                <td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">[[结直肠癌转移]]</td>
                <td style="padding: 10px; border: 1px solid #cbd5e1;"><strong>CDX2 (+)</strong>, CK20 (+), CK7 (-)</td>
                <td style="padding: 10px; border: 1px solid #cbd5e1; color: #b91c1c;">阴性 (-)</td>
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                <td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">[[乳腺癌转移]]</td>
                <td style="padding: 10px; border: 1px solid #cbd5e1;"><strong>GATA3 (+)</strong>, Mammaglobin (+), ER/PR (+)</td>
                <td style="padding: 10px; border: 1px solid #cbd5e1; color: #b91c1c;">阴性 (-)</td>
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                <td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">[[肾细胞癌转移]]</td>
                <td style="padding: 10px; border: 1px solid #cbd5e1;"><strong>PAX8 (+)</strong>, CD10 (+), RCC (+)</td>
                <td style="padding: 10px; border: 1px solid #cbd5e1; color: #b91c1c;">阴性 (-)</td>
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                <td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">[[甲状腺癌转移]]</td>
                <td style="padding: 10px; border: 1px solid #cbd5e1;"><strong>Tg (+)</strong>, PAX8 (+)</td>
                <td style="padding: 10px; border: 1px solid #cbd5e1; color: #16a34a;">阳性 (+) (特例)</td>
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    <h2 style="background: #f1f5f9; color: #0f172a; padding: 10px 18px; border-radius: 0 6px 6px 0; font-size: 1.25em; margin-top: 40px; border-left: 6px solid #0f172a; font-weight: bold;">临床表现：静默的进展</h2>
    
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        <h3 style="margin-top: 0; color: #1e40af; font-size: 1.1em;">为什么常无症状？</h3>
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            肺实质内缺乏痛觉神经。肺转移瘤多位于肺外周（血流丰富的部位），不侵犯气道和胸膜时，几乎不产生咳嗽或胸痛。因此，定期的 <strong>[[胸部CT]]</strong> 随访对于肿瘤患者至关重要。
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        <li style="margin-bottom: 12px;"><strong>气管内转移 (Endobronchial Metastasis)：</strong> 
            <br>较少见。肿瘤转移至支气管黏膜，可引起刺激性干咳、<strong>[[咯血]]</strong>或阻塞性肺炎。常见于肾癌、结直肠癌转移。</li>
        <li style="margin-bottom: 12px;"><strong>癌性淋巴管炎 (Lymphangitic Spread)：</strong> 
            <br>肿瘤弥漫侵犯肺间质淋巴管。表现为进行性加重的<strong>[[呼吸困难]]</strong>、干咳。影像上可见小叶间隔增厚（网格征），甚至出现胸腔积液。预后通常较差。</li>
        <li style="margin-bottom: 12px;"><strong>气胸 (Pneumothorax)：</strong> 
            <br>罕见但具特征性。多见于<strong>[[骨肉瘤]]</strong>或软组织肉瘤的肺转移，因肿瘤坏死形成胸膜下空洞破裂所致。</li>
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        <span style="color: #0f172a; font-weight: bold; font-size: 1.05em; display: inline-block; margin-bottom: 15px;">学术参考文献 [Academic Review]</span>
        
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            [1] <strong>Rekhtman N. (2018).</strong> <em>Lung immunohistochemistry: update on common uses and pitfalls.</em> <strong>[[Archives of Pathology & Laboratory Medicine]]</strong>. <br>
            <span style="color: #475569;">[点评]：权威的病理学综述，详细列出了 TTF-1、Napsin A、p40 等标记物在区分原发性肺癌与转移性肿瘤中的鉴别流程。</span>
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            [2] <strong>Seo JB, et al. (2001).</strong> <em>Atypical pulmonary metastases: spectrum of radiologic findings.</em> <strong>[[RadioGraphics]]</strong>. <br>
            <span style="color: #475569;">[点评]：影像学经典，除了常见的结节，还展示了空洞性（常见于鳞癌）、钙化性（骨肉瘤）及出血性（晕征）等非典型肺转移表现。</span>
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            [3] <strong>Pastorino U, et al. (1997).</strong> <em>Long-term results of lung metastasectomy: prognostic analyses based on 5206 cases.</em> <strong>[[The Journal of Thoracic and Cardiovascular Surgery]]</strong>. <br>
            <span style="color: #475569;">[点评]：奠定了肺转移瘤手术切除（Metastasectomy）的地位，指出完全切除（R0）和较长的无病间期（DFI）是生存的关键。</span>
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            肺转移 · 知识图谱
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                <td style="width: 85px; background-color: #f8fafc; color: #334155; font-weight: 600; padding: 10px 12px; text-align: right; vertical-align: middle;">来源标记</td>
                <td style="padding: 10px 15px; color: #334155;">[[TTF-1]] (肺/甲) • [[CDX2]] (肠) • [[GATA3]] (乳) • [[PAX8]] (肾)</td>
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                <td style="width: 85px; background-color: #f8fafc; color: #334155; font-weight: 600; padding: 10px 12px; text-align: right; vertical-align: middle;">特殊形态</td>
                <td style="padding: 10px 15px; color: #334155;">[[空洞性转移]] • [[钙化性转移]] • [[晕征]] • [[粟粒样转移]]</td>
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                <td style="width: 85px; background-color: #f8fafc; color: #334155; font-weight: 600; padding: 10px 12px; text-align: right; vertical-align: middle;">临床分型</td>
                <td style="padding: 10px 15px; color: #334155;">[[寡转移]] • [[广泛转移]] • [[同步转移]] • [[异时转移]]</td>
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                <td style="width: 85px; background-color: #f8fafc; color: #334155; font-weight: 600; padding: 10px 12px; text-align: right; vertical-align: middle;">治疗手段</td>
                <td style="padding: 10px 15px; color: #334155;">[[全身化疗]] • [[肺转移瘤切除]] • [[SBRT]] • [[消融治疗]]</td>
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