Attributes and risk factors of positive margins on 864 excisions of basal cell carcinomas: a single-center retrospective study

• DOI: 10.1080/09546634.2019.1695724
• Publication Date: 2019-11-21T20:44:06Z
• Authors: Roberto Bueno Filho; Bruno de Carvalho...; Cecília Anatriell...; Rafael V. G. Melo; Isadora Rosan; Fernando Chahud; Cacilda da Silva ...
• Keywords: Basal (medicine); Single Center

Background: Residual tumors increase the likelihood of recurrence basal cell carcinoma (BCC).Objective: We determined attributes and risk factors for positive surgical margins (+SM) excised BCC in a university hospital.Methods: In this cross-sectional retrospective study, we reviewed histologic reports removed via conventional excision (CSE) by specialists from different fields.Results: Among BCCs (n = 864), there was predominance nodular (82.64%) facial H-area (72.81%; average diameter 9.12 mm), which had highest + SM rate (20.17%). Most cephalic (ce-BCC; 69.01%) non-cephalic (91.11%) were dermatologists, with low rates (4.53%; 1.46%, respectively); overall 12.73%. Men larger (p < .001) more ulcerated .04) BCC. An aggressive pattern (Ag-P) ulceration correlated tumor size on multivariate analysis. The increased ce-BCC .02), Ag-P .001), nasal .007), labial .05) regions. head-neck surgeons high chance .002).Conclusions: H-zone remain critical SM. Accordingly appropriate treatment protocols should be used to ensure CSE.