肺癌与肺结核 的影像学诊断. 肺癌分类 lung cancer, bronchogenic carcinoma ...
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肺癌与肺结核肺癌与肺结核的影像学诊断的影像学诊断
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肺癌分类
Lung cancer, bronchogenic carcinoma
病理分型:鳞、小、腺、大临床分型:中央型、周围型、纵隔型
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Squamous cell Ca30-40%, generally central (70%
hilar or perihilar in subsegmental or larger bronchi)
strong association with cigarette smoking
about 15% bronchogenic carcinomas are cavitary, and of these, nearly 60% are squamous cell lesions, wall typically thick and nodular
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intralumenal growth pattern- often resulting in distal atelectasis or post-obstructive pneumonitis (a non-infectious process). the lowest frequency of distant metastases, spreads to involve local nodes by direct extensionthe most favorable prognosis Hypertrophic osteoarthropathy
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adenocarcinoma
as common as squamous cell carcinoma (30-40%).
generally peripheral (75%)uncommonly cavitate commonly metastasizes early to lym
ph nodes, the pleura, adrenal glands, CNS, and bone.
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Small cell Ca15-20% of primary lung malignanci
es the strongest association with cigare
tte smoking the most likely to produce ectopic h
ormones- most commonly resulting in Cushings syndrome (ACTH) or syndrome of inappropriate antidiuretic hormone (SIADH)
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generally central (85-90% within a lobar or mainstem bronchi) and has a tendency to invade longitudinally along the bronchial wall, in a submucosal and intramural fashion
Internal necrosis is common, but cavitation is extremely rare
the worst prognosis, despite typically good response to initial chemotherapy
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Large Cell Ca
only 5-10% strongly associated with cigarette
smoking typically peripheral and generally
large (over 4 to 6 cm), with rapid growth, early metastases, and a poor prognosis
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Pancoast tumor apical density (superior pulmonary sul
cus) destruction or adjacent rib or vertebr
a Horner's syndrome pain in arm usually bronchogenic Ca (squamous t
ype) also: mets, malignant neurogenic tum
or
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影像诊断
目的:明确诊断, TNM分期手段: X线平片、 CT、MRI、 PET等
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T1: A tumor less than or equal to 3 cm in greatest dimension, surrounded by lung or visceral pleura, without bronchoscopic evidence of invasion more proximal than the lobar bronchus (i.e., not in the main bronchus).
TUMOR
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T2: A tumor with any of the following features:i) Larger than 3 cm in largest dimension
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ii) Associated with atelectasis or post-obstructive pneumonitis that extends to the hilar region, but does not involve the entire lung
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iii) Invades the visceral pleura
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T3: A tumor of any size that directly invades any of the following: the chest wall (including superior sulcus tumors), diaphragm, mediastinal pleura, parietal pericardium; or tumor in the main bronchus less than 2 cm distal to the carina (but without involvement of the carina); or tumor associated with atelectasis or obstructive pneumonitis of the entire lung.
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T4: A tumor of any size that invades any of the following: mediastinum, heart, great vessels, trachea, esophagus, vertebral body, carina; or any tumor with a malignant pleural or pericardial effusion; or with satellite tumor nodules within the ipsilateral primary-tumor lobe of the lung.
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Regional Lymph Node Status (N)
N1: Ipsilateral peribronchial or hilar nodal metastases; or intrapulmonary nodes involved by direct extension of the primary tumor. All N1 nodes lie distal to the mediastinal pleural reflection.
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N2: Ipsilateral mediastinal and subcarinal lymph nodal metastases. Midline pre-vascular and retrotracheal nodes are considered ipsilateral [5], while nodes to the contralateral side of midline are considered N3
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N3: Contralateral mediastinal or contralateral hilar nodal metastases; also includes ipsilateral or contralateral scalene or supraclavicular nodes. Other cervical nodes are classified M1
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Distant Metastasis (M)M0: No distant metastasis M1: Distant metastasis present; or separate tumor nodules in the ipsilateral nonprimary-tumor lobes of the lung. Separate tumor nodules in the contralateral lung are considered M1 if they are of the same histologic cell type as the primary lesion. A contralateral lung tumor with a different cell type is considered a synchronous primary lesion and should be staged independently
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原发肺结核
原发综合 征
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支气管淋巴结结核 tuberculosis of bronchial lymph nodes
原发肺结核
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肺浸润及增殖infiltration and proliferation
浸润肺结核
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2、 TB浸润、空洞及支气管播散infiltrative pulmonary tuberculosis with cavity
浸润肺结核
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结核球tuberculoma浸润肺结核
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断层片tomography
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急性粟粒性 TBMiliary TB
血行播散型肺结核
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急性粟粒性肺结核