Systemic miliary tuberculosis ensues when infective foci in the lungs seed the pulmonary venous return to the heart; the organisms subsequently disseminate through the systemic arterial system.
Almost every organ in the body can be seeded. Lesions resemble those in the lung. Miliary tuberculosis is most prominent in the liver, bone marrow, spleen, adrenals, meninges, kidneys, fallopian tubes, and epididymis.
See also
pulmonary lesions