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肺癌发病率与病死率在我国居恶性肿瘤之首,目前我国肺癌 5 年生存率为 19.7%,肺癌Ⅰ期患者 5 年生存率可达 77%~92%,肺癌早期诊断和治疗是提高肺癌 5 年生存率、改善患者预后的关键。
肺结节是指影像学表现为最大径 ≤ 3 cm 的局灶性、类圆形、较肺实质密度增高的实性或亚实性阴影,可为孤立性或多发性,不伴肺不张、肺门淋巴结肿大和胸腔积液。单个病灶定义为孤立性,2 个及以上的病灶定义为多发性。
密度分类:可分为实性肺结节和亚实性肺结节,后者又包含纯磨玻璃结节和部分实性结节。
","text_del":0,"type":1,"video_del":0,"video_thumbnail_del":0,"vote_del":0},{"audio_del":0,"audio_music_id":0,"ext":{"unique_id":"4b018784d0d364d4f97665dd3cb97517"},"img_del":0,"is_template_subtitle":false,"location_del":0,"sectionPublished":false,"sell_del":0,"source":0,"subtitle_state":2,"text":"二、肺结节的常规检查:","text_del":0,"type":1,"video_del":0,"video_thumbnail_del":0,"vote_del":0},{"audio_del":0,"audio_music_id":0,"ext":{"unique_id":"a25cd76c5225d3a4073185470b853751"},"img_del":0,"is_template_subtitle":false,"location_del":0,"sectionPublished":false,"sell_del":0,"source":0,"subtitle_state":0,"text":"影像学检查:与胸部 X 线相比,胸部 CT 扫描可提供更多信息,如肺结节位置、大小、形态、密度、边缘及内部特征等。
影像学评估:
1. 外观评估:包括结节大小、结节形态、结节边缘和结节-肺界面的评估;
2. 内涵评估:包括密度和结构的评估;
3. 动态随访。
","text_del":0,"type":1,"video_del":0,"video_thumbnail_del":0,"vote_del":0},{"audio_del":0,"audio_music_id":0,"ext":{"unique_id":"4739b902ed38c197b5f31d2d4e921179"},"img_del":0,"is_template_subtitle":false,"location_del":0,"sectionPublished":false,"sell_del":0,"source":0,"subtitle_state":2,"text":"三、肺结节的随访观察:","text_del":0,"type":1,"video_del":0,"video_thumbnail_del":0,"vote_del":0},{"audio_del":0,"audio_music_id":0,"ext":{"unique_id":"752e9a09ff9e8ddddb490843cec6fcf1"},"img_del":0,"is_template_subtitle":false,"location_del":0,"sectionPublished":false,"sell_del":0,"source":0,"subtitle_state":0,"text":"肺结节在随访中有如下变化者,多考虑为良性:
(1)短期内病灶外部特征变化明显,无分叶或出现深度分叶,边缘变光整或变模糊;
(2)密度均匀或变淡;
(3)在密度没有增加的情况下病灶缩小或消失;
(4)病灶迅速增大,倍增时间 < 15 d;
(5)实性结节病灶 2 年以上仍然稳定。
肺结节在随访中有如下变化时,多考虑为恶性:
(1)直径增大,倍增时间符合肿瘤生长规律(不同恶性结节倍增周期变异度较大,实性肺结节倍增周期约 20~400 d;亚实性结节倍增时间 400~800 d 或更长的时间);
(2)病灶稳定或增大,并出现实性成分;(3)病灶缩小,但出现实性成分或其中实性成分增加;
(4)血管生成符合恶性肺结节规律;
(5)出现分叶、毛刺和(或)胸膜凹陷征。
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肺结节是指影像学表现为最大径 ≤ 3 cm 的局灶性、类圆形、较肺实质密度增高的实性或亚实性阴影,可为孤立性或多发性,不伴肺不张、肺门淋巴结肿大和胸腔积液。单个病灶定义为孤立性,2 个及以上的病灶定义为多发性。
密度分类:可分为实性肺结节和亚实性肺结节,后者又包含纯磨玻璃结节和部分实性结节。
","text_del":0,"type":1,"video_del":0,"video_thumbnail_del":0,"vote_del":0},{"audio_del":0,"audio_music_id":0,"ext":{"unique_id":"4b018784d0d364d4f97665dd3cb97517"},"img_del":0,"is_template_subtitle":false,"location_del":0,"sectionPublished":false,"sell_del":0,"source":0,"subtitle_state":2,"text":"二、肺结节的常规检查:","text_del":0,"type":1,"video_del":0,"video_thumbnail_del":0,"vote_del":0},{"audio_del":0,"audio_music_id":0,"ext":{"unique_id":"a25cd76c5225d3a4073185470b853751"},"img_del":0,"is_template_subtitle":false,"location_del":0,"sectionPublished":false,"sell_del":0,"source":0,"subtitle_state":0,"text":"影像学检查:与胸部 X 线相比,胸部 CT 扫描可提供更多信息,如肺结节位置、大小、形态、密度、边缘及内部特征等。
影像学评估:
1. 外观评估:包括结节大小、结节形态、结节边缘和结节-肺界面的评估;
2. 内涵评估:包括密度和结构的评估;
3. 动态随访。
","text_del":0,"type":1,"video_del":0,"video_thumbnail_del":0,"vote_del":0},{"audio_del":0,"audio_music_id":0,"ext":{"unique_id":"4739b902ed38c197b5f31d2d4e921179"},"img_del":0,"is_template_subtitle":false,"location_del":0,"sectionPublished":false,"sell_del":0,"source":0,"subtitle_state":2,"text":"三、肺结节的随访观察:","text_del":0,"type":1,"video_del":0,"video_thumbnail_del":0,"vote_del":0},{"audio_del":0,"audio_music_id":0,"ext":{"unique_id":"752e9a09ff9e8ddddb490843cec6fcf1"},"img_del":0,"is_template_subtitle":false,"location_del":0,"sectionPublished":false,"sell_del":0,"source":0,"subtitle_state":0,"text":"肺结节在随访中有如下变化者,多考虑为良性:
(1)短期内病灶外部特征变化明显,无分叶或出现深度分叶,边缘变光整或变模糊;
(2)密度均匀或变淡;
(3)在密度没有增加的情况下病灶缩小或消失;
(4)病灶迅速增大,倍增时间 < 15 d;
(5)实性结节病灶 2 年以上仍然稳定。
肺结节在随访中有如下变化时,多考虑为恶性:
(1)直径增大,倍增时间符合肿瘤生长规律(不同恶性结节倍增周期变异度较大,实性肺结节倍增周期约 20~400 d;亚实性结节倍增时间 400~800 d 或更长的时间);
(2)病灶稳定或增大,并出现实性成分;(3)病灶缩小,但出现实性成分或其中实性成分增加;
(4)血管生成符合恶性肺结节规律;
(5)出现分叶、毛刺和(或)胸膜凹陷征。
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