Reply to “Correlation of Basal Cell Carcinoma Subtype With Histologically Confirmed Subclinical Extension During Mohs Micrographic Surgery: A Prospective Multi-Center Study”

Abstract

To the Editor: We read with interest the study by Lim et al,1 in which consecutive basal cell carcinomas (BCCs) treated with Mohs micrographic surgery (MMS) were evaluated. In the study, the subclinical tumor extension (SCE) was measured by assessing average stages to clear margins. Histologic subtype drift (HSD), defined as a change in basal cell carcinoma subtype (BCCS) from the time of the index biopsy to that at the time of the final stage of MMS, was also assessed.