A 33-year-old woman comes to the physician for a 5-month history of restlessness and menstrual irregularities. Heart rate is 90. Physical examination shows exophthalmos. A radioiodine uptake scan is shown. “A” represents a normal scan; “B” represents the patient. The most likely diagnosis is most immunologically similar to which of the following?
Anaphylaxis
Arthus reaction
Bullous pemphigoid
Contact dermatitis
Serum sickness
