1. Oncologic Outcomes for Squamous Cell Carcinoma In Situ With a Clinically Resolved Biopsy Site Managed by Watchful Waiting.
- Author
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Logan S, Porter HJ, Lowry J, Carpenter C, Seward DJ, Holmes T, Goldman G, and Bui MR
- Subjects
- Humans, Male, Retrospective Studies, Female, Middle Aged, Aged, Risk Factors, Biopsy, Carcinoma in Situ pathology, Carcinoma in Situ therapy, Lymphatic Metastasis, Adult, Aged, 80 and over, Watchful Waiting statistics & numerical data, Carcinoma, Squamous Cell pathology, Carcinoma, Squamous Cell therapy, Carcinoma, Squamous Cell mortality, Neoplasm Recurrence, Local epidemiology, Neoplasm Recurrence, Local pathology, Skin Neoplasms pathology, Skin Neoplasms therapy, Skin Neoplasms mortality
- Abstract
Background: Treatment option decisions for low-risk squamous cell carcinoma in situ (SCCIS) are hampered by a paucity of management-type-specific outcomes data., Objective: Describe SCCIS tumor outcomes managed by watchful waiting and risk factors associated with poor cancer outcomes., Materials and Methods: Retrospective cohort study. Setting: Single academic hospital in a rural setting. Patients: Adults with SCCIS diagnosed between January 01, 2014, and December 31, 2016. Main Outcomes and Measures: Hazard ratios (HRs) for local recurrence (LR), nodal metastases (NM), distant metastases (DM), and disease-specific death (DSD)., Results: A total of 411 consecutive SCCIS tumors that were considered clinically resolved at follow-up and managed with watchful waiting were included. Seventeen tumors recurred locally. No instances of NM, DM, or DSD were identified. Multivariate analysis found that solid-organ transplant recipient status conferred the highest risk of local recurrence [HR, 9.979 (95% CI, 2.249-39.69)]. Additional risk factors predicting LR include anatomic location on the vermilion lip or ear [HR, 9.744 (95% CI, 1.420-69.28)], anatomic location on the head and neck [HR, 6.687 (95% CI, 1.583-36.15)], and a biopsy with tumor extending to the deep edge [HR, 6.562 (95% CI, 1.367-39.04)]., Conclusion: Watchful waiting for SCCIS with a clinically resolved biopsy site has a local recurrence rate of 4%., (Copyright © 2024 by the American Society for Dermatologic Surgery, Inc. Published by Wolters Kluwer Health, Inc. All rights reserved.)
- Published
- 2024
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