Here are a couple diseases with names that are maddeningly similar: pemphigus vulgaris and bullous pemphigoid. Both diseases have bullae (big blisters), and both are mediated by antibodies – but there are important differences that you need to remember.

There’s actually some logic behind the names of these diseases, and once you understand that, everything else falls into place. We talked about this in class – but I thought I’d share this post that I wrote, in case it helps to read about it in a different way.