<prompt> True about Ghons focus -Left apical parenchymal lesionRight apical parenchymal lesionSub pleural caseous lesion in right upper lobeSubpleural caseous lesion just above or below interlobar fissure  <response>: Inhaled tubercule bacilli implanted in the distal air spaces of the lower part of upper lobe or upper part of the lower lobe, close to the pleura. This area is about 1 to 1.5 cm with caseating necrosis known as Ghons focus.Primary complex or Ghons complex of tuberculosis consists of 3 components.Pulmonary compound or Ghons focus.Draining lymphaticsCaseating hilar lymph node 