A 27 year-old Australian man presents with numerous erosions of his mucous membranes. Examination
of his oral cavity reveals painful oral ulcers and a friable mucosa Immunoflourescence evaluation
demonstrates intraepidermal band of IgG. A biopsy of the lesion shows breakdown of intercellular
epithelial connections. Which of the following is the most likely diagnosis in this patient?
A. Herpetic ulcers
B. Measles
C. Dermatitis herpertiformis
D. Pemphigus vulgaris
E. Bullous pemphigoid