Mycobacterium tuberculosis spread

Hematogenous disseminated tuberculosis is the result of hematogenous dissemination of Mycobacterium tuberculosis. More common in children, adults can also occur. There are two clinical types: ① acute hematogenous disseminated tuberculosis or acute miliary tuberculosis; ② subacute or chronic hematogenous disseminated tuberculosis. The most common in children is acute miliary tuberculosis; older children often show subacute or chronic hematogenous disseminated tuberculosis.