<prompt> Goodpastures syndrome is characterised by :Necrotising haemorrhagic interstitial pneumonitis. AlveolitisPatchy consolidationPulmonary oedema  <response>: Necrotising haemorrhagic interstitial pneumonitis Goodpastures syndrome is an uncommon autoimmune disease. It shows presence of circulating autoantibiodies against non collagenous domain at a-3 chain of collagen IV. These antibodies initiate inflammatory distruction at basement membrane in glomeruli lung alveoli, giving rise to RPGN necrotising haemorrhagic interstitial pneumonitis. 