High-Risk Characteristics of Eyelid Basal Cell Carcinoma in Young Patients: A Retrospective Cohort Study.

INTRODUCTION Early-onset eyelid basal cell carcinoma (BCC) is uncommon, and it remains unclear whether younger patients exhibit distinct tumor characteristics, risk-factor profiles, or postoperative outcomes compared with older patients.

Methods

This retrospective cohort included 268 patients with histologically confirmed eyelid BCC. Patients were stratified by age at surgery (< 40 vs. ≥ 40 years). Demographic risk factors, tumor characteristics, surgical margins, reconstruction, and follow-up outcomes were compared. The primary outcome was crude local recurrence during follow-up. Sequential Firth penalized logistic regression evaluated age < 40 years with adjustment for histological subtype and clinical and surgical characteristics.

Results

Of 268 patients enrolled in the study, 45 were aged < 40 years and 223 were ≥ 40 years. Younger patients more often were female (64.4% vs. 43.9%; P = 0.014), reported indoor tanning (35.6% vs. 7.6%; P < 0.001), and had a genetic syndrome (8.9% vs. 0.0%; P < 0.001). Tumors in younger patients more often involved the clinical eyelid margin (64.4% vs. 23.3%; P < 0.001), had involved initial margins (68.9% vs. 35.4%; P < 0.001), and required revision stages (73.3% vs. 17.5%; P < 0.001). Crude local recurrence was higher in younger patients (22.2% vs. 5.8%; P = 0.001), as was documented dry eye syndrome (26.7% vs. 4.0%; P < 0.001). Age < 40 years was associated with increased recurrence risk on unadjusted analysis, but this association attenuated after adjustment for histology and clinical characteristics.

Conclusion

Young adults with eyelid BCC showed distinctive exposure patterns, high-risk anatomic/surgical features, and higher crude recurrence. The age-recurrence association attenuated after adjustment, suggesting that age alone may not explain the observed difference.