You must not ignore the dangers of mycoplasma pneumonia

Mycoplasma pneumonia is a type of interstitial pneumonia caused by Mycoplasma pneumoniae. There are dozens of mycoplasma parasitizing in humans, but only Mycoplasma pneumoniae is pathogenic to humans. The incidence is higher in children and adolescents, and the incidence is more common in autumn and winter, mainly through droplet transmission, often sporadic, and occasionally epidemic.

The onset of the disease is acute, with fever, headache, sore throat, stubborn and severe cough, shortness of breath, and chest pain, sputum production is often insignificant, dry and wet rales are often heard on auscultation, and chest x-ray shows segmental texture enhancement and reticular or lamellar opacities.

White blood cell count: mildly elevated, lymphocyte and mononucleosis.The disease is not clinically indistinguishable from viral pneumonia, but it can be diagnosed by the presence of Mycoplasma pneumoniae in sputum, nasal secretions, and throat swabs.

Most mycoplasma pneumonia has a good prognosis, with a mortality rate of 0.1 to 1%.

Pathological changes: Mycoplasma pneumoniae infection can spread to the entire respiratory tract, causing upper respiratory tract infection, tracheitis, bronchitis, and pneumonia. Lung lesions usually involve one lobe, more often in the lower lobe, and occasionally in both lungs.

The lesions mainly occur in the interstitium of the lungs, so the consolidation of the lesions is not obvious, and it is often distributed in stages. The naked eye is dark red, there may be a small amount of red foamy fluid overflow on the section, there may be mucous exudate in the trachea and bronchial lumen, the pleura is generally not involved, the alveolar space in the lesion area is significantly widened under the microscope, and vasodilation, hyperemia, and interstitial edema are accompanied by a large number of lymphocytes, monocytes and a small number of plasma cells.

There is no exudate in the alveolar space and only a small amount of serous exudate mixed with monocytes. Congestion and edema of the small bronchi, bronchiole wall and its surrounding interstitial congestion, chronic inflammatory cell invasion, and neutrophil invasion in bacterial infection.

In severe cases, bronchial epithelium and lung tissue may be significantly necrotic and hemorrhage.