This question is part of the USMLE QBANK

The Free question bank contains hundreds of free MCQs with answers.

Feel free to browse through the questions and if you feel the need to contact us, don't hesitate.

Page 1 of 1

1. A 30-year-old pregnant woman of Jewish descent presents to a physician with painful oral ulcers. Physical examination demonstrates widespread erosions of her mucous membranes. Close examination reveals a friable mucosa, but no well-defined aphthous ulcers. Biopsy of perilesional mucosa demonstrates acantholysis; direct immunofluorescence demonstrates an intraepidermal band of IgG and C3. Which of the following is the most likely diagnosis?