Diagnosis: Erythema multiforme
Description: Ten days after treatment.
Morphology: Wheal
Site: Thigh
Sex: M
Age: 10
Type: Clinical
Submitted By: Nameer Al-Sudany
Differential DiagnosisHistory:
A 10-year-old boy presented with a one-week history of slightly itchy, bilateral symmetrical weal-like lesions confined to the thighs. The lesions were persistent (not evanescent), devoid of purpuric elements and on closer examination few lesions had targetoid appearance. He had no history of a preceding infection or drug intake. He was diagnosed as an urticaria-like EM and was given an oral antihistamine (Cetrizine) and twice daily applications of Mometazone furoate cream with complete disappearance of the rash within 10 days.