Curettage of Benign Lesions: Technique and Aftercare

Overview / Definition Curettage is a surgical procedure that involves the scraping or scooping of tissue using a specialized instrument called a curette. This technique is primarily employed to excise benign skin lesions, such as seborrheic keratosis, warts, and skin tags. Curettage can be performed alone or in conjunction with other procedures, such as electrodessication, to enhance efficacy and reduce the likelihood of recurrence. Epidemiology Benign skin lesions are incredibly prevalent in the general population, with conditions like seborrheic keratosis being especially common among older adults. The exact incidence varies based on factors such as age, skin type, and sun exposure, but it is estimated that over 80% of individuals over the age of 50 will develop at least one seborrheic keratosis. Pathophysiology / Mechanism Benign lesions often arise due to a variety of factors, including genetic predisposition and environmental influences such as UV radiation. For example, seborrheic keratosis is thought to result from the proliferation of keratinocytes, leading to the characteristic appearance of these lesions. Curettage effectively removes these abnormal growths by physically scraping them away, which can also promote healing and regeneration of the surrounding skin. Clinical Presentation Patients may present with various benign lesions, which can include: Seborrheic keratosis: Raised, brown, scaly lesions often described as "stuck-on". Warts: Rough, elevated lesions caused by human papillomavirus (HPV) infection. Skin tags: Small, soft, flesh-colored growths commonly found in areas of friction. These lesions may be asymptomatic or may cause cosmetic concerns, itching, or irritation. Diagnosis / Workup The diagnosis of benign lesions is primarily clinical, based on the characteristic appearance of the lesions. In some cases, a biopsy may be warranted to rule out malignancy, especially if the lesion exhibits atypical features. Key steps in the workup include: Th