riSCC: A personalized risk model for the development of poor outcomes in cutaneous squamous cell carcinoma - 18/06/25

Abstract |
Background |
Cutaneous squamous cell carcinoma (CSCC) is a prevalent disease for which improved risk stratification strategies are needed.
Objective |
To develop a novel prognostic model (herein “riSCC”) for CSCC and compare riSCC performance to Brigham and Women's Hospital and American Joint Committee on Cancer Staging eighth edition T staging systems.
Methods |
Retrospective 12-center, multinational cohort study of CSCCs from 1991 to 2023. Clinical and pathologic risk factors, treatments, and outcomes were collected. Fine-Gray model was employed for each outcome with inverse probability of treatment weighting. A final model was trained for prospective use and estimation of hazard ratios.
Results |
Twenty-three thousand one hundred sixty-six localized CSCC tumors were included. riSCC prognostic model performed superiorly to American Joint Committee on Cancer eighth edition and Brigham and Women's Hospital T staging for all outcomes. At 5 years, the C-index for riSCC ranged from 0.74 for local recurrence to 0.87 for disease specific death.
Limitations |
Retrospective study design.
Conclusion |
riSCC prognostic model offers fine-grained risk estimates and improved stratification for important CSCC outcomes compared to T staging systems.
Le texte complet de cet article est disponible en PDF.Key words : American Joint Committee on Cancer eighth edition, Brigham and Women's Hospital T Staging, cutaneous oncology, cutaneous squamous cell carcinoma, metastasis, Mohs micrographic surgery, nonmelanoma skin cancer, oncology, outcomes, recurrence
Abbreviations used : AJCC8, BWH, CSCC, DSD, ITM, LR, LVI, MMS, NM, PNI, WLE
Plan
| Drs Jambusaria-Pahlajani, Ruiz and Authors Jeanselme, Lotter are contributed equally. |
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| Funding sources: Supported in part by the American College of Mohs Surgery (ACMS) Foundation ; WL is supported by grant R21EB035247 . |
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| Patient consent: Not applicable. |
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| IRB approval status: Reviewed and approved by all 12 institutions. |
Vol 93 - N° 1
P. 73-81 - juillet 2025 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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