[Differential diagnoses of ocular mucous membrane pemphigoid].

Overall, conjunctival scarring is rare and often overlooked during routine examination. However, the differential diagnostic distinction of cicatricial mucous membrane pemphigoid from other causes is crucial for further treatment planning. Other entities that lead to conjunctival scarring, are ocular rosacea, ocular graft-versus-host disease, atopic keratoconjunctivitis, infections, trauma and further sometimes very rare diseases. Most of these differential diagnoses have in common that conjunctival scarring does not progress indefinitely if untreated, in contrast to mucous membrane pemphigoid.