Cordate-like hyperdense shadow in the lingual lobe of the left lung may be caused by tuberculosis, pneumonia, lung trauma, and the treatment varies with different causes. 1. Tuberculosis: it is a chronic disease caused by the invasion of tuberculosis bacillus into the human body, which may cause night sweats, fatigue, coughing and other symptoms, and can be treated by taking anti-tuberculosis drugs such as isoniazid, rifampicin, pyrazinamide and so on under the guidance of the doctor. 2. Pneumonia: pathogenic microorganisms caused by lung infection leads to inflammation, will be the left lung lingual lobe cord-like density increase shadow, there will be cough, cough sputum, dyspnea and other symptoms, follow the doctor’s instructions to take amoxicillin, ampicillin, cefuroxime and other drugs. In addition, the patient should carry out lung CT examination to understand the specific situation of the lung. 3. Lung trauma: lung trauma, chest pain, hemoptysis, dyspnea, shortness of breath and other symptoms, the patient should consult a doctor in a timely manner to identify the symptoms, under the guidance of the doctor to take roxithromycin, tetracycline, ciprofloxacin and other antibiotics, if the symptom is more serious, you can put a tube on the pleural effusion drainage. Patients who have left lung lingual lobe cord-like density increase shadow should consult a doctor in time, under the guidance of the doctor to take medication and carry on the later treatment.