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Cornea & External Diseases

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Tumors
Irregular leukoplakic lesion at the superior limbus.

  • A rare, unilateral premalignant condition
  • More commonly seen in older, fair-skinned individuals
  • Usually occurs as a localized, slightly elevated, minimally invasive, and remains confined to the epithelium
  • May infrequently invade the underlying stroma and metastasize to regional lymph nodes
  • Recurrences are common
  • Clinical features:
    • Nodular, or irregular white lesions (leukoplakia) that may occur anywhere in the conjunctiva or cornea, most commonly at the limbus in interpalpebral fissure
    • Fleshy or frothy vascularized lesions that simulate benign conjunctival squamous papilloma
    • Diffuse, translucent gray area of conjuctival intraepithelial neoplasia involving the cornea
  • Management:
    • Surgical excision with cryotherapy and/or alcohol application
    • Use of topical chemotherapy with mitomycin C, 5-fluorouracil, or interferon

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