Squamous Cell Carcinoma Invading a Transplanted Cornea: Eye- and Vision-Sparing Palladium-103 Plaque Radiation Therapy for a Functionally Monocular Patient

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Purpose:To present a unique approach to eye and vision sparing for a patient with squamous cell carcinoma invading through a penetrating keratoplasty (PK) wound.Methods:A 56-year-old functionally monocular man was found to have squamous cell carcinoma with intraocular invasion through a PK wound. Eye- and vision-salvaging palladium-103 plaque radiation was performed. An amniotic membrane graft was used to buffer and thus protect the cornea during the 7-day treatment. Leaded eye glasses were worn during the day to block emitted radiation and allow functional vision during irradiation.Results:At 3.5 years status posttreatment, the tumor has regressed, PK has become progressively hazy (within the irradiated zone), and his vision is stable at 20/320. The epicorneal tumor has disappeared, and the intraocular tumor nodules are more highly reflective, but persistent. There has been no intraocular tumor progression, worsening of his glaucoma, or evidence of intraocular radiation vasculopathy.Conclusions:Transcorneal intraocular tumor invasion was controlled using palladium-103 ophthalmic plaque radiation therapy applied through the natural and donor cornea. Definitive treatment resulted in local tumor control and preservation of vision.

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