Diagnosis: Dermatographism
Description: Skin writing.
Morphology: Wheal
Site: Arm,forearm
Sex: M
Age: 25
Type: Clinical
Submitted By: Nameer Al-Sudany
Differential DiagnosisHistory:
Pruriting whealing of the skin on rubbing, frictioning and scratching of many months duration. The linear wheals shown in photos in addition to the patient name written in Arabic (???) were induced in the clinic through gentle scraping the skin.