Chronic pulmonary eosinophilia (long-term pulmonary eosinophilia, Lehr-Kindberg syndrome) is a variant of simple pulmonary eosinophilia with the existence and recurrence of eosinophilic infiltrates in the lungs for more than 4 weeks.
Pulmonary eosinophilia is a group of diseases and syndromes characterized by transient pulmonary infiltrates and blood eosinophilia exceeding 1.5 x 109/l.
Pneumosclerosis is the growth of connective tissue in the lungs, which occurs as a result of various pathological processes. Depending on the severity of the growth of connective tissue, fibrosis, sclerosis, and cirrhosis of the lungs are distinguished. In pneumofibrosis, cicatricial changes in the lungs are moderately expressed.
Gangrene of the lungs is a severe pathological condition characterized by extensive necrosis and ichorous decay of the affected lung tissue, not prone to clear demarcation and rapid purulent melting.
Infectious destruction of the lungs are severe pathological conditions characterized by inflammatory infiltration and subsequent purulent or putrefactive decay (destruction) of the lung tissue as a result of exposure to non-specific infectious agents (N. V. Pukhov, 1998). Three forms of infectious destruction of the lungs are distinguished: abscess, gangrene, and gangrenous lung abscess.
Chronic pneumonia is a chronic inflammatory localized process in the lung tissue, the morphological substrate of which is pneumosclerosis and (or) carnification of the lung tissue, as well as irreversible changes in the bronchial tree according to the type of local chronic bronchitis, clinically manifested by relapses of inflammation in the same affected part of the lung.
Pneumonias against the background of immunodeficiency states are caused by various pathogens. This article describes pneumocystis and cytomegalovirus pneumonia.
Viral pneumonias are caused by various viruses (they are listed at the beginning of the chapter). In adults, the most common causes are influenza A and B viruses, parainfluenza, respiratory syncytial virus, and adenovirus.
Infections caused by Chl. pneumoniae are widespread. At the age of 20, specific antibodies to Chl. pneumoniae are found in half of those examined, with increasing age - in 80% of men and 70% of women.
