Pediatric acute hematogenous disseminated tuberculosis

Acute hematogenous disseminated tuberculosis, also known as acute chestnut tuberculosis, is the result of worsening of the primary infection. It mainly occurs in infants and children under 3 years of age. The disease mostly occurs 3 to 6 months after the primary infection, with a high incidence in spring. Due to the low immune function of infants and young children, tuberculosis bacteremia is easily formed after infection with tuberculosis. When the primary lesion or caseous necrosis of the lymph nodes ruptures, a large number of bacteria invade the blood and cause acute hematogenous disseminated tuberculosis. In 1978, China's newly revised classification of tuberculosis classified it as type II, the most serious type of tuberculosis. It is the manifestation of systemic hematogenous disseminated tuberculosis in the lungs, 90% of which occur within 1 year after the primary infection.

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