Which one of the following is not a lichenoid reaction?: (A) Lichenoid contact reaction, (B) Pemphigus, (C) Lichenoid drug eruption, (D) Lichenoid reaction of graft versus host disease
Answer is B. Lichenoid reactions represent a family of lesions with diﬀerent etiologies with a common clinical & histological appearance. They include LIchenoid contact reactions, Lichenoid drug eruptions, Lichenoid reaction of graft versus host disease.