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Middle East African Journal of Ophthalmology Middle East African Journal of Ophthalmology
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ORIGINAL ARTICLE
Year : 2018  |  Volume : 25  |  Issue : 3  |  Page : 150-155

Predictors of ocular surface squamous neoplasia and conjunctival squamous cell carcinoma among ugandan patients: A hospital-based study


1 Department of Ophthalmology, Connaught Hospital, Freetown, Sierra Leone
2 Department of Ophthalmology, Mbarara University of Science and Technology and Ruharo Eye Centre, Mbarara, Uganda
3 Department of Pathology, Mbarara University of Science and Technology and Global Health Collaboration, Seed Global Health, Boston, Massachusetts, USA

Correspondence Address:
Dr. Simon Arunga
Department of Ophthalmology, Mbarara University of Science and Technology, Kabale Road, Mbarara
Uganda
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/meajo.MEAJO_187_16

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AIM: The aim of the study was to assess the predictors of ocular surface squamous neoplasia (OSSN) and conjunctival squamous cell carcinoma (SCC) among Ugandan patients. MATERIALS AND METHODS: Patients presenting for removal of ocular surface lesions received human immunodeficiency virus (HIV) testing, completed questionnaires about demographic, behavioral, and historical potential risk factors for conjunctival neoplasia, and had lesions examined for interpalpebral versus other locations, rough versus smooth texture, and number of feeder vessels. Biopsies were classified pathologically using standard definitions classified OSSN and SCC. HIV rates were calculated for patients: with OSSN, SCC, and benign lesions. Potential risk factors and gross findings were tested for abilities to predict OSSN and SCC. RESULTS: One hundred and ninety-five patients presented with 212 lesions in 203 eyes. Nearly 34% of the patients were more than 60 years old, 67% were peasants, 88% spent more than 20 h/week outdoors, and only 10% wore sun protection. No potential risk factors predicted neoplasia. HIV prevalence was 17.1% among patients with OSSN compared to 11.1% among those without OSSN; 42.9% among SCC patients compared to 12.0% among those without SCC. Rough tumor surface (adjusted odds ratio [aOR] = 4.4 and 95% confidence interval [CI]: 2.2–9.1), six or more feeder vessels (aOR = 2.6, 95% CI: 1.3–5.2), and interpalpebral tumor location (aOR = 3.3, 95% CI: 1.5–7.1) predicted OSSN. Only a rough tumor surface (aOR = 34.6, 95% CI: 7.8–153.4) predicted SCC. CONCLUSION: HIV infection remained a risk factor for OSSN and particularly, SCC, but less so than in the past. Lesions' rough surface, six or more feeder vessels, and interpalpebral location increased OSSN risk. Only a rough tumor surface increased risk for SCC.


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