Clinical and pathological diagnosis and comparison of benign and malignant eyelid tumors.

Purpose: To assess and compare demographic and clinical features of benign and malignant eyelid tumors from 2011 to 2018 in a tertiary medical center.
Materials and Methods: The study was conducted retrospectively from medical records to compare demographic and clinical characteristics and recurrence of benign and malignant eyelid tumors after obtaining institutional review board approval. A total of 428 eyelid tumors with histopathologic diagnoses were studied. Premalignant lesions were not included. The lesions were classified into two groups according to malignancy: benign and malignant eyelid lesions.
Results: Among the 428 histopathologically confirmed eyelid lesions, 373 (87.1%) were benign and 55 (12.9%) were malignant. The patients with malignant eyelid tumors had a higher mean age at diagnosis than patients with benign eyelid tumors (P=0.012). The most common benign eyelid tumors were squamous papilloma (17.7%), xanthelasma (11.5%), and epidermal cysts (11.3%). The most common malignant eyelid tumors were basal cell carcinomas (65.5%), squamous cell carcinomas (14.5%), and sebaceous gland carcinomas (7.3%). There was no relative gender predominance between patients with benign and malignant eyelid tumors (P=0.287). Benign eyelid tumors were most commonly located on the right side and upper eyelid (P=0.027 and 0.036, respectively). Malignant tumors had a higher rate of recurrence (P=0.002).
Conclusion: Differentiation between benign and malignant eyelid lesions is important, since it may lead to cosmetic complications and serious morbidity, particularly in patients with malignant eyelid tumors.
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