Ocular surface squamous neoplasia: An overview

Ocular surface squamous neoplasia (OSSN) is a diverse range of neoplasm arising from squamous epithelium of conjunctiva, limbus and cornea. OSSN is considered as a low grade malignancy but may be locally invasive and require exenteration. It has relatively high recurrence rate. It has multifactorial etiology and specific pathogenesis of lesion has yet to be attributed. Histopathology with immunohistochemistry is a gold standard diagnostic tool.This mini review highlights the pathogenesis, risk factors, various clinical manifestations, latest diagnostic tools and recent development in treatment of OSSN.
 

Keywords: Ocular surface squamous neoplasia, Xeroderma pigmentosum, Histopathological