Margins in head and neck non-melanoma skin cancer surgery: clinical/pathological criteria and their impact on oncological outcomes and therapeutic choices. A systematic review.
Francesco Bussu, Antonio Daloiso, Giulio Pagliuca, Stefano Settimi, Alessandro Scanu, Valerio Margani, Dario Antonio Mele, Vanessa Di Stefano, Marta Bonomo, Diego Cazzador, Claudio Parrilla, Davide Rizzo, Elisabetta Zanoletti, Piero Nicolai, Andrea Gallo, Jacopo Galli
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Abstract
Introduction: Non-melanoma skin cancers (NMSCs), including basal (BCC) and squamous cell carcinoma (SCC), are the most prevalent malignancies affecting the skin, with the head and neck region being the most common site of involvement. Surgical excision remains the primary treatment modality. The role of surgical margins in the treatment of skin SCC and BCC of the head and neck remains a subject of ongoing debate. Clear definitions and guidelines regarding adequate surgical margins, as well as their impact on recurrence rates and overall outcomes, are critical for improving clinical management. This systematic review aims to evaluate the current literature on the definitions of surgical margins for SCC and BCC of the head and neck, as well as their impact on local recurrence, disease free survival, and other patient-centred outcomes.
Materials and methods: We conducted a systematic review following the PRISMA guidelines. A comprehensive search was performed across multiple databases, including PubMed and Scopus, for studies published up to December 2024. Eligible studies included those that reported on surgical margin definitions, surgical outcomes, and recurrence rates for SCC and BCC of the skin in the head and neck region. Data were extracted and analysed for margin size and oncological outcomes.
Results: Following the application of inclusion and exclusion criteria, 30 studies have been retrieved for qualitative synthesis. Of these, 12 studies focused on SCC only, 14 on BCC only, and 4 on mixed histologies. Margin involvement rates ranged widely across the studies included (5-56%) as did thelocal recurrence rate (0-20%). This is associated with a variability of the surgical margin both for SCC and BCC, and of the definition of margin as close/negative at final pathology. Most studies do not define a threshold for close vs. negative margins at final pathology. All studies but one reported a significant correlation between positive margins and oncological outcomes, with particular regards to local recurrence.
Conclusions: The findings highlight a lack of consensus on the optimal surgical margins for SCC and BCC of the head and neck, suggesting that margins may need to be individualised based on tumour characteristics, location, and patient factors. In particular, the anatomical complexity of the head and neck region suggests to separately address different high-risk areas as nose/midface, periauricular, and periocular with specific recommendations also concerning clinical margins.
期刊介绍：
Acta Otorhinolaryngologica Italica first appeared as “Annali di Laringologia Otologia e Faringologia” and was founded in 1901 by Giulio Masini.
It is the official publication of the Italian Hospital Otology Association (A.O.O.I.) and, since 1976, also of the Società Italiana di Otorinolaringoiatria e Chirurgia Cervico-Facciale (S.I.O.Ch.C.-F.).
The journal publishes original articles (clinical trials, cohort studies, case-control studies, cross-sectional surveys, and diagnostic test assessments) of interest in the field of otorhinolaryngology as well as clinical techniques and technology (a short report of unique or original methods for surgical techniques, medical management or new devices or technology), editorials (including editorial guests – special contribution) and letters to the Editor-in-Chief.
Articles concerning science investigations and well prepared systematic reviews (including meta-analyses) on themes related to basic science, clinical otorhinolaryngology and head and neck surgery have high priority.
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