True about Ghon's focus: (AIIMS Nov 2014)
|A||Left apical Parenchymal lesion|
|B||Right apical parenchymal lesion|
|C||Suipleural caseous lesion in right upper lobe|
|D||Suipleural caseous lesion just above or below interlobar fissure|
|E||Caseous hilar lymphadenopathy|
called as atypical because of moderate amount of sputum, moderate elevation of total white cell count no finding of consolidation and lack of alveolar exudate
characterized by inflammatory reaction predominantly restricted within the walls of alveoli within the interstitium are clear whereas the core of these particles is dark.