Electrodesiccation and Curettage
David J. Leffell
Equipment needed
Antiseptic solution
1% lidocaine with/without epinephrine 1:100,000 solution
Curette (sizes 3 mm to 5 mm)
Electrosurgical unit
Sterile bandage
Bacitracin/polymyxin ointment
Considerations
Electrodesiccation and curettage (EDC) is a useful technique for treating benign, superficial lesions, such as seborrheic keratoses or molluscum contagiosum. EDC can also be used to treat small and superficial basal cell or squamous cell carcinomas. Electrodesiccation refers to directing electric current to the skin surface with a monopolar electrode resulting in the destruction of the area. Cell death and tissue necrosis extend beyond the clinically detectable tumor margins, a process that effectively destroys residual malignant cells. EDC is not as effective as excisional surgery for curing basal cell or squamous cell carcinomas. However, the ease of the procedure, together with the lower cost and less invasive nature, may justify its use when treating small superficial tumors with clearly visible margins.