A 56-year-old woman with a history of celiac disease visited her doctor after a number of firm, smooth plaques developed over the course of a couple of weeks. The plaques manifested as yellow and pink, but then changed to a reddish color. They became painful and pruritic. The patient noted that the lesions seemed smaller in the morning and increased in size during the day. She was also experiencing joint pain.
Can you diagnose the patient? Use the differential builder in VisualDx as a guide.
A. Sweet syndrome
B. Erythema elevatum diutinum
C. Erythema multiforme
D. Ulcerative colitis
See the next page for the correct diagnosis.