肺癌与肺结核的影像学诊断hrv.pptx
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1、肺癌与肺结核的影像学诊断肺癌分类w Lung cancer,bronchogenic carcinomaw 病理分型:鳞、小、腺、大w 临床分型:中央型、周围型、纵隔型Squamous cell Caw 30-40%,generally central(70%hilar or perihilar in subsegmental or larger bronchi)w strong association with cigarette smokingw about 15%bronchogenic carcinomas are cavitary,and of these,nearly 60%are
2、 squamous cell lesions,wall typically thick and nodular wintralumenal growth pattern-often resulting in distal atelectasis or post-obstructive pneumonitis(a non-infectious process).wthe lowest frequency of distant metastases,spreads to involve local nodes by direct extensionwthe most favorable progn
3、osis wHypertrophic osteoarthropathyadenocarcinomaw as common as squamous cell carcinoma(30-40%).w generally peripheral(75%)w uncommonly cavitate w commonly metastasizes early to lymph nodes,the pleura,adrenal glands,CNS,and bone.Small cell Caw 15-20%of primary lung malignancies w the strongest assoc
4、iation with cigarette smokingw the most likely to produce ectopic hormones-most commonly resulting in Cushings syndrome(ACTH)or syndrome of inappropriate antidiuretic hormone(SIADH)w generally central(85-90%within a lobar or mainstem bronchi)and has a tendency to invade longitudinally along the bron
5、chial wall,in a submucosal and intramural fashion w Internal necrosis is common,but cavitation is extremely rarew the worst prognosis,despite typically good response to initial chemotherapy Large Cell Ca w only 5-10%w strongly associated with cigarette smokingw typically peripheral and generally lar
6、ge(over 4 to 6 cm),with rapid growth,early metastases,and a poor prognosisPancoast tumorw apical density(superior pulmonary sulcus)w destruction or adjacent rib or vertebra w Horners syndrome w pain in arm w usually bronchogenic Ca(squamous type)w also:mets,malignant neurogenic tumor 影像诊断w 目的:明确诊断,T
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- 关 键 词:
- 肺癌 肺结核 影像 诊断 hrv
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