Miliary tuberculosis

Definition

Miliary tuberculosis is a form of tuberculosis characterized by a wide dissemination into the human body and tiny nodules resembling millet seeds in the affected organs. It can affect multiple organ systems and is often diagnosed through imaging and laboratory tests.

5 Must Know Facts For Your Next Test

1. It is caused by Mycobacterium tuberculosis spreading through the bloodstream.
2. Miliary tuberculosis often presents with symptoms like fever, weight loss, and night sweats.
3. The disease can affect organs beyond the lungs, including the liver, spleen, and bone marrow.
4. Chest X-rays or CT scans typically show a 'miliary' pattern of numerous small nodules throughout the lungs.
5. Tuberculin skin tests may be negative due to an overwhelming infection causing immunosuppression.

Related terms

Latent Tuberculosis: A condition where Mycobacterium tuberculosis remains dormant in the body without causing symptoms.

Pulmonary Tuberculosis: Tuberculosis that primarily affects the lungs, leading to cough, chest pain, and hemoptysis.

Extrapulmonary Tuberculosis: Tuberculosis infection occurring outside of the lungs, such as in lymph nodes or kidneys.