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Miliary tuberculosis is a form of tuberculosis that is characterized by a wide dissemination into the human body and by the tiny size of the lesions (1–5 mm). Its name comes from a distinctive pattern seen on a chest radiograph of many tiny spots distributed throughout the lung fields with the appearance similar to millet seeds—thus the term "miliary" tuberculosis.
Even though it sounds bad, most people at this stage are actually asymptomatic or maybe have a mild flu-like illness. About 3 weeks after initial infection, cell-mediated immunity kicks in, and immune cells surround the site of TB infection, creating a granuloma, essentially an attempt to wall off the bacteria and prevent it from spreading.
However, lesions may appear anywhere in the lungs. In disseminated TB a pattern of many tiny nodules throughout the lung fields is common - the so-called miliary TB. In HIV and other immunosuppressed persons, any abnormality may indicate TB or the chest X-ray may even appear entirely normal. [citation needed]
Health chiefs have issued a warning after cases of tuberculosis in the UK rose in 2023, with more people seeking medical treatment for the serious lung infection which can leave patients coughing ...
This severe form of TB disease, most common in young children and those with HIV, is called miliary tuberculosis. [97] People with this disseminated TB have a high fatality rate even with treatment (about 30%). [53] [98] In many people, the infection waxes and wanes. Tissue destruction and necrosis are often balanced by healing and fibrosis. [94]
When the weather starts to cool, a common question often arises: "Am I sick, or is it just allergies?" Here's what the experts say.
TB exposure No evidence of infection: History of exposure Negative reaction to tuberculin skin test 2: TB infection No disease: Positive reaction to tuberculin skin test Negative bacteriologic studies (if done) No clinical, bacteriologic, or radiographic evidence of TB 3: TB, clinically active: M. tuberculosis cultured (if done)
The U.S. is experiencing the highest number of flu hospitalizations in a decade, and there’s no sign that the virus is going to peak or go away in the coming weeks.With the busy holiday travel ...