What is miliary disease?
Miliary tuberculosis is a potentially life-threatening type of tuberculosis that occurs when a large number of the bacteria travel through the bloodstream and spread throughout the body. Tuberculosis. It usually affects the lungs.
What is miliary mottling?
Miliary mottling consists of opacities, between 0.5 to 2 mm in size, in chest radiography.
Which organs can be affected by disseminated TB?
Disseminated tuberculosis is a mycobacterial infection in which mycobacteria have spread from the lungs to other parts of the body through the blood or lymph system….Complications of disseminated TB can include:
- Adult respiratory distress syndrome (ARDS)
- Liver inflammation.
- Lung failure.
- Return of the disease.
Why is Mantoux negative in miliary TB?
The tuberculin skin test with purified protein derivative (PPD) often yields negative results in patients with miliary TB. This may be explained by the large number of TB antigens throughout the body. Negative tuberculosis skin testing results do not exclude the possibility of TB.
What is the difference between disseminated TB and miliary TB?
Good to know: The term miliary TB is used by some interchangeably with disseminated TB. However, miliary TB in fact refers more specifically to disseminated TB which presents with a millet-seed-like appearance on a chest x-ray, when the disease is spread by blood throughout the lungs (see FAQs).
What is DDX of TB?
Overview. Pulmonary tuberculosis should be distinguished from other diseases that cause cough, hemoptysis, fever, night sweat, and weight loss such as: bacterial pneumonia, atypical pneumonia, brucellosis, bronchogenic carcinoma, sarcoidosis, and Hodgkin lymphoma.
How do you catch scrofula?
Scrofula is usually caused by breathing in air that is contaminated with mycobacterium bacteria. The bacteria then travel from the lungs to lymph nodes in the neck.
Is miliary TB primary or secondary?
After initial inhalation of TB bacilli, miliary tuberculosis may occur as primary TB or may develop years after the initial infection. The disseminated nodules consist of central caseating necrosis and peripheral epithelioid and fibrous tissue.
WHO TB classification?
Tuberculosis classification system
| Class | Type |
|---|---|
| 1 | TB exposure No evidence of infection |
| 2 | TB infection No disease |
| 3 | TB, clinically active |
| 4 | TB Not clinically active |