A 76-year-old man presents with sudden blood-filled blisters on the tongue and Purpura. Explore the diagnosis behind these alarming mucocutaneous findings.
A 76-year-old man presented to the dermatology clinic with a 2-day history of blood-filled blisters on the tongue. He reported no prior trauma or other bleeding symptoms. Physical examination was notable for hemorrhagic bullae on the tongue and gingiva, and purpura on the arms and legs. Which of the following lab abnormalities is most likely present?
