<prompt> A typical example of an immunologically mediated collagen vascularconnective tissue disorder isLichen planusPemphigus vulgarisLupus erythematousEpidermolysis bullosa  <response>: Systemic Lupus Erythematosus is a multisystem autoimmune disease characterised by autoantibodies, immune complex formation and immune dysregulation resulting in damage to kidney, skin, blood vessels, CNS. Pemphigus, Lichen planus, epidermolysis bullosa are mucocutaneous disorders. 