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Τρίτη 27 Δεκεμβρίου 2016

British Association of Dermatologists’ national audit on nonmelanoma skin cancer excision, 2014

Summary

Background

Diagnosis and management of nonmelanoma skin cancer (NMSC) represents a large part of the dermatology workload, and complete excision is a required surgical standard for treatment.

Aim

To conduct an audit of the surgical practice for the treatment of NMSC by dermatologists in the UK.

Methods

Data on 10 consecutive nonmicrographic excisions of nonmelanoma skin cancer by UK dermatologists. Data collected included site, preoperative diagnosis, histological diagnosis, proximity to previous scars, and histological deep and peripheral margins.

Results

A total of 227 responses from 135 centres reported 2739 excisions. Excisions on the head and neck accounted for 58.3% of cases. Tumour diameter (mean ± SD) was 10.61 ± 6.9 mm (maximum 130 mm), and 96.7% of cases were primary excisions, with 3.3% being re-excisions. Basal cell carcinomas (BCCs) accounted for 79.1% (n = 2167) of the total cases and squamous cell carcinomas (SCCs) for 17.9% n = 491). Of the suspected BCCs and SCCS, 94.4% (n = 2045) and 66.8% (328), respectively, were confirmed histologically to be the respective carcinomas. Similar proportions of BCC and SCC cases were within 10 mm of a previous excision. Lateral and deep margins were clear in 98.3% and 99.2% of BCC cases, respectively, and in 98.4% and 97.1% of SCC cases, respectively. Reported surgical complication rate in the audit was 3.4%.

Conclusions

The majority of excisions for NMSC are for BCC and SCC. Our figures for diagnostic accuracy are at the upper range of previously published figures. Most patients were not followed up in secondary care, hence complication rates may be under-reported.



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