Advancement Flap for Removing Seborrheic Keratosis on the Helix of Ear: A Case Report

Background: Seborrheic keratoses are benign intraepidermal neoplasms arising from epidermal keratinocytes. Age and UV exposure have a role in the course of disease. keratosis consists several types cells, transformation into various epithelial tumors originating same cell type can occur. Therefore, basal carcinoma may arise basaloid which is most commonly reported malignant neoplasm seborrheic keratosis. Various treatment modalities available to treat keratoses. We report case resembling treated using surgical excision with advancement flap technique.
 Case presentation: A 76-year-old man came complaints itchy, blackish-brown lumps on his left ear 3 months ago. On examination dermatological status helix auricula sinistra, there was solitary nodule blackish brown color diameter 1cm x an ulcer uneven surface, well-defined, telangiectatic (+). An biopsy showed results keratosis, keratotic type. The management this flap.
 Conclusion: one common skin that occur old age. Excision good clinical improvement.