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2. Pulmonary TB with Hilar LymphadenopathyEnlargement of the lymph nodesof pulmonary hilaCommon in childLymphadenopathy vs enlarged pulmonary arteryLymphadenopathy has a more lumpy-bumpy appearance, while an enlarged pulmonary artery appears smooth

3. PTB with AtelectasiaComplication of PTBCauses:Enlarged Hilar LN compressing adjacent airwayFibrosis of lung tissue due to chronic infectionMostly seen atanterior segments of the upper lobes and the medial segment of the middle lobe