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Necrotizing pneumonia (NP), also known as cavitary pneumonia or cavitatory necrosis, is a rare but severe complication of lung parenchymal infection. [1] [2] [3] In necrotizing pneumonia, there is a substantial liquefaction following death of the lung tissue, which may lead to gangrene formation in the lung.
Gangrene is a type of tissue death caused by a lack of blood supply. [4] Symptoms may include a change in skin color to red or black, numbness, swelling, pain, skin breakdown, and coolness. [1] The feet and hands are most commonly affected. [1] If the gangrene is caused by an infectious agent, it may present with a fever or sepsis. [1]
Lung abscess is a type of liquefactive necrosis of the lung tissue and formation of cavities (more than 2 cm) [1] containing necrotic debris or fluid caused by microbial infection. This pus -filled cavity is often caused by aspiration, which may occur during anesthesia, sedation, or unconsciousness from injury.
Pneumonitis refers to lung inflammation; pneumonia refers to pneumonitis, usually due to infection but sometimes non-infectious, that has the additional feature of pulmonary consolidation. [80] Pneumonia is most commonly classified by where or how it was acquired: community-acquired, aspiration, healthcare-associated , hospital-acquired , and ...
Infection (e.g., gas gangrene) can cause gas to be trapped in the subcutaneous tissues. Subcutaneous emphysema can be caused by medical procedures and medical conditions that cause the pressure in the alveoli of the lung to be higher than that in the tissues outside of them. [ 4 ]
Lung disease: People with underlying respiratory conditions, including chronic obstructive pulmonary disease (COPD), can develop trouble breathing from the flu. Heart disease: About 50% of ...
Merck said its drug met the main goal of significantly reducing the time to disease worsening, lung transplantation or death in a late-stage study of 172 patients with advanced stages of the ...
Lung disease is caused by inhaling or ingesting nontuberculous mycobacteria. Unlike tuberculosis, NTM infection is not transmitted from person to person. [6] Although NTM lung infections can cause lung cavities, the most common finding on imaging is bronchiectasis, which may occur with or without cavities. [10]