clear levels felt to be sufficient when determining tumour clearance, was 2.2 (range 1-6) and for those using size, a mean of 165.6 µm (range 50-300 µm). Common factors taken into account when determining clearance were the morphology of the tumour, presence of scarring, inflammation or perineural invasion and the quality of cryostat slides. Details of the histopathological aspects and work practices are summarized in Table 1.The survey showed that the great majority (96.2%) of MMS units have a dedicated adjacent MMS laboratory. The recently published multidisciplinary Service Guidance and Standards for MMS recommends preoperative assessment for all potential MMS surgery patients, including a discussion of alternative options. 4 This is supported by data from this survey, which showed that 7.9% of patients referred for MMS surgery are subsequently deemed unsuitable for the procedure. The survey data also indicate that the majority of MMS surgeons (62.0%) consult with all potential patients prior to surgery.This study provides a valuable update to the 2011 national survey outcomes and serves as a benchmark of MMS practice for individual departments.