Abstract
The incidence of nonmelanoma skin cancer (NMSC) in the United States is increasing with approximately 3.6 million cases diagnosed per year. The staging and treatment of NMSC is guided by histologic subtype based on skin biopsy, along with other tumor-specific factors. However, a biopsy only represents a portion of the tumor, so there is a risk of upstaging at the time of definitive surgery. We conducted a review of the literature and found that a significant proportion of NMSC were upstaged during surgery. The rate of upstaging of basal cell carcinoma (BCC) was 7–31% and that of squamous cell carcinoma in situ (SCCIS) to squamous cell carcinoma (SCC) was 3–39%. Biopsy sampling error and variability in interpreting and reporting by dermatopathologists contribute to these discrepancies. It is pertinent to consider more comprehensive treatment modalities for tumors at high risk for upstaging. Diligence to identify tumors at higher risk for upstaging will allow clinicians to optimize management.
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Abbreviations
- NMSC:
-
Nonmelanoma skin cancer
- BCC:
-
Basal cell carcinoma
- SCC:
-
Squamous cell carcinoma
- SLNB:
-
Sentinel lymph-node biopsy
- NCCN:
-
National Comprehensive Cancer Center Network
- mm:
-
Millimeters
- MMS:
-
Mohs micrographic surgery
- WLE:
-
Wide local excision
- SCCIS:
-
Squamous cell carcinoma in situ
- BWH:
-
Brigham and Women’s Hospital
- cm:
-
Centimeters
- AJCC:
-
American Joint Committee on Cancer
- NOS:
-
Not otherwise specified
- MAC:
-
Microcystic adnexal carcinoma
- CD34:
-
Cluster of differentiation 34
- BSC:
-
Basosquamous carcinoma
- MCC:
-
Merkel cell carcinoma
- AK:
-
Actinic keratosis
- Tis:
-
Carcinoma in situ
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All authors made substantial contributions to the conception and design of the work. Stephanie Clements performed the literature search and data analysis for the work. The first draft of the manuscript was written by Stephanie Clements. All authors commented on the previous versions of the manuscript and revised them. All authors approved the final version to be published, and agree to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved.
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Clements, S., Khachemoune, A. Upstaging of basal cell and squamous cell carcinomas during definitive surgery: a review of predictive preoperative clinical and histologic features. Arch Dermatol Res 313, 319–325 (2021). https://doi.org/10.1007/s00403-020-02151-5
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DOI: https://doi.org/10.1007/s00403-020-02151-5