Rev Peru Med Exp Salud Publica
January 2017
Objectives: To estimate the frequency of unsuspected ocular surface squamous neoplasia (OSSN) in pterygium, the accuracy of clinical diagnosis, and associated demographic and clinical characteristics.
Materials And Methods: We reviewed histopathological reports of patients with a clinical diagnosis of pterygium and/or OSSN who were surgically treated between March 2009 and December 2012 at the National Eye Institute in Lima, Peru. The accuracy of the clinical diagnosis of OSSN was assessed by sensitivity, specificity, and likelihood ratios.