DP01 Survey on the management of dysplastic naevus

Abstract Although dysplastic naevus (DN) is a frequent diagnosis, there significant controversy on its definition and gradation relationship to melanoma risk. Therefore, no consensus over optimal management, surveys from Australia, Canada the USA have shown variation in clinical practice. Dysplastic with involved histological margins has not been progress melanoma. To assess UK management of DN depending grade atypia reported excision margin, we circulated questionnaire via email dermatologists Scotland, north Wales, Liverpool Manchester. Seventy-two responded, whom 46 (64%) were consultants. The cohort was generally highly experienced, 10 (14%) responders 1–5 years’ dermatology experience, 15 (21%) 6–10 years, 27 (37%) 11–20 years 20 (28%) > experience. Management varied greatly. For mild excised < 1-mm 59 (82%) agreed that further required. Opinions divided when DN, 14 (19%) agreeing required, 42 (58%) choosing re-excise six (8%) re-excising only any residual pigmentation. Most reassured patients moderately 1 mm (49, 68%); 18 (25%) preferred re-excise. moderate margins, respondents felt necessary 54 (75%) would severe mm, 16 (22%) still agree multidisciplinary team meeting (MDT). 41 (57%) seven (10%) MDT. Lastly, for 62 (86%) This study comparable results those Australia USA, whereby most margins. Significant numbers indicated they case close margins: this unnecessary, more standardized may reduce expenditure. Limitations include usual potential sources bias survey; it should be noted behaviour differ actual However, first common scenario. move report as low- or high-grade help variation, but our survey suggests some are currently undergoing unnecessary procedures.