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A-C, Three cases of CD caused by mechlorethamine gel treatment of MF. Patients were treated for the indicated number of months. Patch testing was performed with varying concentrations (v/v) of mechlorethamine (M). After 96 hours, final results were obtained and photographs taken. Baseline (no treatment) is month 0. Cases 1 (not shown) and 2 show allergic CD, and case 3 irritant by CD patch testing.
