A middle-aged Mediterranean woman presents for her initial patient visit at a dermatology clinic through which you are rotating. Her physical exam is remarkable for small vesicles as well as large...

A middle-aged Mediterranean woman presents for her initial patient visit at a dermatology clinic through which you are rotating. Her physical exam is remarkable for small vesicles as well as large bullae, some of which have ruptured to leave weeping, crusted, inflamed patches on her trunk, face, neck, and scalp. Notably, her extremities are spared. You recognize the disease, which is caused by an autoimmune antibody attack on the intercellular cement that binds epidermis. What is your diagnosis?

A. Epidermolysis bullosa

B. Pemphigus

C. Bullous pemphigoid

D. Dermatitis herpetiformis