MILIARY TUBERCULOSIS: Miliary tuberculosis  can occur when tuberculous lung lesions erode pulmonary veins or when when extrapulmonary tuberculous lesions erode systemic veins.This results in hematogenous dissemination of tubercle bacilli producing myriads of 1-2 mm. lesions throughout the body in susceptible hosts. Miliary spread limited to the lungs  can occur following erosion of pulmonary arteries by tuberculous lung lesions.

Miliary TB of lung with accompanying chest X-ray

Miliary TB - lung 

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Miliary TB - spleen

Miliary TB - kidney

Miliary TB - lung 

Miliary TB - lung 

Miliary TB-lung.

Miliary TB-lung. Angiocentric granuloma; arteriole

Miliary TB-lung. Angiocentric granuloma; capillary

Miliary TB - kidney

Miliary TB - kidney

Miliary TB - kidney

Miliary TB-liver