Diagnosis and differential diagnosis of lung cancer

A diagnosis (1) 1 diagnosis. No symptoms, signs, X-ray revealed solitary pulmonary nodule or mass. Burr was lobulated or refined, or CT scan confirmed by CT signs of bronchial obstruction, and lung cancer should be suspected. 2. Smoking male aged 40 and above, irritating cough, accompanied by intermittent or continuous small blood. Limitations chest lung lesions. on the positive anti-inflammatory or anti-tuberculosis treatment (2-4 weeks) were invalid or lesions increased anti-trend. 3. Segmental pneumonia in 2-3 months to develop lung did not know or did not know the near future for the entire lobe pulmonary atelectasis, or they did not know the root mass in the lung, especially those growing mass. 4. There were no other reasons for the short-term growth side of the pleural effusion, pleural effusion, or the side of a great deal of courage and accompanied by pulmonary atelectasis, bronchoscopy to be verified. 5. Obviously shortness of breath, coughing, chest X-ray showed bilateral miliary or diffuse lesions should be excluded miliary tuberculosis, pulmonary metastases. pulmonary aspergillosis and other diseases. 6. Lung-shaped piece of the truth, without hilar or (and) mediastinal lymphadenopathy, and there superior vena cava obstruction. neurovascular compression symptoms of recurrent laryngeal nerve paralysis, or with distant lymph node metastasis. 7. Cytology or biopsy definite diagnosis. (B) sub-clinical stage anticancer 1989 International Union (UICC) TNM staging of lung cancer following. Primary tumor (T) : TX : sputum phases find the cancerous cells, but no X-ray or bronchoscopic lesions; or medical treatment, not measuring the size of the primary lesion. T0 : no evidence of the original tumor. Tis : carcinoma in situ. T1 tumors ≤ 3cm : limiting the visceral pleura or lung, bronchoscopy not implicating Mr proximal bronchial tumors; Any superficial tumor size is limited to the bronchial wall and spread. If extended to reach the total to more than bronchial bronchial leaves, divided into T1. T2 : ≥ 3 cm tumor or tumor lobar bronchus, but 2cm away from the carina. Or tumor-infiltrating the visceral pleura; The obstructive lung pneumonia or pulmonary atelectasis, but involved the whole lung. T3 : tumor size of any direct involvement chest wall, diaphragm, mediastinal pleural or pericardial, without involving the heart, great vessels, trachea, Esophageal or vertebral body; or tracheal tumors less than 2 cm from the carina, without implicating the Carina; The obstructive lung pneumonia and atelectasis. T4 : mediastinal involvement of any size or cardiac tumors, vascular, vertebrae, airway or malignant pleural effusion. Lymph node metastasis (N) phases : N0 : without lymph node metastasis. N1 : bronchial ipsilateral side or hilar lymph node metastasis. N2 : under the ipsilateral mediastinal lymph node metastasis and Carina. N3 : contralateral lymph node, contralateral hilar lymph node metastasis; Ipsilateral or contralateral scalene or supraclavicular lymph node metastasis. Distant metastasis (M) : None phases : M0 or distant metastasis was found. M1 : distant metastasis or lymph node metastases. According to the above primary tumor and metastases hidden summarized as follows : clinical stage cancer : TX N0 M0. Phase 0 : Tis N0 M0. Ⅰ M0;T2N0 : T1 N0 M0. II : N1 M0;T2 T1 N1 M0. Ⅲ a M0;T1~3 N2 : T3 N0 M0. Ⅲ b : Any T, N3 M0;T4; any N, M0. Phase IV : any T or N, M1. Second, the differential diagnosis of lung cancer and other diseases often take seriously before identification. Following are some common diseases. 1. Tuberculosis; 2. BHL; 3. Infiltrating tuberculosis; 4. Miliary tuberculosis; 5. Mediastinal tumors; 6. bronchiectasis; 7. Bulk fiber cheese isolated tuberculosis; 8. lung abscess; 9. Pneumonia (including pseudo-xanthoma); 10. pulmonary benign.