middle lobe syndrome
Introduction
Introduction to middle lobe syndrome Middle lobe syndrome (also known as Brock syndrome or Graham-Burford-Mayer syndrome), refers to the compression of the enlarged lymph nodes outside the bronchial tube, causing atelectasis in the right middle lobe (or left lung tongue), lung lobe Shrink, or inflammation and consolidation. The contraction of the middle lobe caused by simple inflammation does not belong to this syndrome. basic knowledge The proportion of the disease: 0.002% - 0.007% (the above is the incidence rate in the population over 50 years old) Susceptible people: no specific population Mode of infection: non-infectious Complications: multiple lung infections atelectasis
Cause
Cause of middle lobe syndrome
Cause (20%):
The causes of this syndrome are: non-specific inflammation or tuberculous lymphadenopathy, distal occlusion due to bronchiectasis, mucus, pus or foreign body obstruction, endobronchial tuberculosis or non-specific inflammation leading to stenosis or occlusion , bronchial carcinoma or benign tumor obstructs the middle lobe bronchus, primary or metastatic lymphoma enlargement.
Pathogenesis (10%):
Middle lobe syndrome, also known as Brock syndrome or Craham-Burford-Mayer syndrome, is caused by compression and obstruction of enlarged lymph nodes outside the bronchial tube.
Prevention
Middle lobe syndrome prevention
Actively treat primary diseases and prevent complications. Eat properly according to the doctor's advice. Diet should be light, eat more fruits and vegetables, mix well with meals, pay attention to adequate nutrition. Regular review, if there is no clinical symptoms, can be reviewed regularly and observed for a period of time. If symptoms are present, use antibiotics to control secondary infections.
Complication
Middle lobe syndrome complications Complications multiple lung infections atelectasis
Complicated with pulmonary infection.
Symptom
Symptoms of middle lobe syndrome common symptoms vocal fever hemoptysis
There may be repeated coughs, coughs, sometimes accompanied by hemoptysis or fever, and the lungs may smell wet.
The voice is an additional sound other than the breath sound. It is caused by the obstruction of the tracheobronchial bronchial cavity. According to the nature of the sound, it can be divided into dry squeak and wet snoring. The dry snoring is generally divided into snoring and whistle. The sound of the flute; the sound of the wet voice is thick, medium, and fine, and the sound is very similar to the sound of the wet sound.
Examine
Mid-leaf syndrome examination
There may be leukocytosis, mainly due to elevated neutrophils and increased erythrocyte sedimentation rate. Tuberculosis and tumor cells can be found according to different causes.
1. Chest X-ray examination: visible triangles with uniform shadows, the tip of which points to the hilum, the anterior elevation of the squat, and the volume of the middle lobe is reduced.
2. Bronchoscopy: visible middle bronchial stenosis, congestion, inflammation and edema, pus, mucus embolism and granuloma.
3. Chest CT examination: hilar lymph nodes and bronchoconstriction, tumor obstruction, etc. can be found.
Diagnosis
Diagnosis and diagnosis of middle lobe syndrome
Based on clinical performance, laboratory tests and other ancillary examinations, a diagnosis can be made initially.
Clinical should be differentiated from lung atelectasis caused by metastatic lung cancer.
1. Lung cancer is the most common malignant tumor in the lungs. The vast majority of lung cancer originates from the bronchial mucosa epithelium, so it is called bronchial lung cancer.
2. Atelectasis refers to the decrease in volume or gas content of one or more lung segments or lobes. Due to gas absorption in the alveoli, atelectasis is usually accompanied by decreased transmittance in the affected area, adjacent structures (bronchial tubes, pulmonary vessels, Pulmonary interstitial) accumulates in the infertile area, sometimes showing alveolar cavity consolidation, compensatory emphysema in other lung tissues. The collateral gas communication between the lobules of the lungs and the segments (even the lobes of the lungs) allows the fully obstructed area to still have a certain degree of light transmission.
