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This study investigates the demographic and clinical features of conjunctival tumours. Conjunctival tumours include a large spectrum of conditions ranging from benign lesions to aggressive, life-threatening malignancies. Knowing the distribution of conjunctival tumours by age and gender is important for reducing cancer morbidity. The clinical records of 375 patients (410 eyes) diagnosed with a conjunctival mass at a tertiary referral centre between February 1999 and November 2020 were retrospectively evaluated. Two-hundred-seventeen (57.9%) patients were male and 158 (42.1%) were female. Of 410 conjunctival tumours, 159 (38.8%) were benign, 106 (25.9%) premalignant, and 145 (35.4%) malignant. Overall, the 3 most common diagnoses were squamous cell carcinoma (SCC, 19.5%), conjunctival intraepithelial neoplasia (CIN, 18.3%), and naevus (17.8%). The most common benign, premalignant, and malignant tumours were naevus (n = 73/159, 45.9%), CIN (n = 75/106, 70.8%), and SCC (n = 80/145, 55.2%) respectively. Naevus was the most common tumour in ≤20 years and &gt; 20-40 years old patient groups (56.2% and 25.4% respectively). CIN was the most frequent tumour in patients aged &gt; 40-60 years (25.7%). SCC was the most common tumour in &gt; 60-80 years and &gt; 80 years old patient groups (44.3% and 80.0% respectively). The median patient age was greater in patients with malignant tumours (64.5 years) compared to patients with premalignant (55.5 years, p = 0.011) and benign tumours (22.0 years, p &lt; 0.001). Malignant tumours displayed larger base diameter, greater thickness, and intrinsic vessels compared to premalignant or benign lesions (p &lt; 0.001 for each parameter). Malignant tumours also displayed more amelanotic vs melanotic appearance (p &lt; 0.001) and limbal vs extralimbal bulbar location compared to benign lesions (p &lt; 0.001). Premalignant and malignant tumours comprised 61.2% of all conjunctival tumours and were usually detected in patients &gt; 40 years of age in this study.

Demographic and clinical features of conjunctival tumours at a tertiary care centre