system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
This miliary pattern in CT scan can occur due to spread from?
assistant
The correct answer is  Miliary pulmonary disease Miliary systemic disease It occurs in primary progressive pulmonary TB when organisms in the draining lymph nodes erode into the pulmonary aeries. This distributes the infection to both lung fields. Once the infection in the lung reaches the pulmonary vein the bacteria can reach the left side hea. Subsequently, they can seed organs like liver and spleen