You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Pauci immune glomerulonephritis is seen in - and explain in detail?
Ans. is 'b' i.e., Microscopic polyangitis Rapidly progressive glomerulonephritis may be caused by number of different diseases, some restricted to the kidneys and others systemic.Although no single mechanism can explain all cases, there is little doubt that in most cases, the glomerular injury is immunologically mediatedThus a practical classification divides rapidly progressive glomerulonephritis into three groups on the basis of immunological findings.RAPIDLY PROGRESSIVE GLOMERULONEPHRITISType I RPGN (anti GBM antibody)Type II RPGN (Immunecomplex)Type III RPGN (Pauci immune)IdiopathicGoodpasture syndromeIdiopathicPost infectiousSystemic lupus erythematousHenoch Schonlein purpuraANCA associatedIdiopathicWegener granulomatosisMicroscopic PANMicroscopic polyangitis