Презентация на тему «Lobular pneumonia»

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Lobular pneumonia

Presentation

Imanberdi Gauhar

2LdB

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What is it?

Lobar pneumonia is a form of pneumonia in which an entire lobe or a large, continuous portion of a lung lobe is affected. The alveoli fill with inflammatory exudate, and imaging reveals an area of tissue compaction. This condition is most often associated with a bacterial infection, particularly pneumococcal.

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Main Causes

The most common pathogen causing lobar pneumonia is pneumococcus, or Streptococcus pneumoniae. Less commonly, it is caused by Klebsiella pneumoniae, Legionella pneumophila, Haemophilus influenzae, and Mycobacterium tuberculosis. In some cases, the inflammation may be associated with other microbes, but bacterial causes are the most common.

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How it develops

The disease begins acutely and quickly affects a significant portion of a lung lobe. Fluid, neutrophils, and other inflammatory cells accumulate in the alveoli, causing the tissue to lose its air space. As the disease progresses, the consolidation can spread from the periphery to the center, occupying the entire lobe.

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Main symptoms

Lobar pneumonia typically includes high fever, chills, cough with sputum production, and chest pain when breathing. Weakness, shortness of breath, and rapid breathing are common. In older and debilitated patients, symptoms may be more subtle, making early recognition more difficult.

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Radiographic appearance

On radiographs, lobar pneumonia appears as a homogeneous consolidation limited to one lung lobe. The consolidation is often adjacent to the interlobar fissure and can occupy most of the lobe. This pattern helps distinguish it from focal, spotty inflammation, which is more characteristic of bronchopneumonia.

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Differences from bronchopneumonia

Lobar pneumonia predominantly affects an entire lobe, while bronchopneumonia, sometimes called lobular pneumonia, is usually focal and patchy. With bronchopneumonia, inflammation begins around the bronchi and small bronchioles, so lesions can be scattered across different areas of the lungs. These two forms differ both in their imaging appearance and in the extent of the process.

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Who is more likely to develop it?

Lobar pneumonia is more common in people with weakened immune systems, the elderly, and those with pre-existing chronic lung diseases. The risk also increases after exposure to cold, smoking, and exposure to a bacterial infection. It can also develop in children, but the clinical course may be more severe.

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Diagnosis and Treatment

Diagnosis involves a physical examination, chest X-ray, complete blood count, and, if necessary, sputum analysis. The mainstay of treatment for bacterial infections is antibiotics, selected based on the suspected or confirmed pathogen. In severe cases, oxygen, hospital observation, and monitoring for complications may be necessary.

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Conclusion

Lobar pneumonia is a bacterial inflammation of the lung that affects a large, continuous portion of a lobe. It is characterized by high fever, cough, chest pain, and visible consolidation on X-ray. Timely diagnosis and the correct choice of antibiotic can reduce the risk of complications and speed up recovery.