Abstract
A 62-year-old man with lung cancer presented with a 2-week history of decreased vision and clinical features of cytomegalovirus retinitis. The patient was empirically treated for viral retinitis, but microbiological testing of the vitreous fluid was negative. Based on the suspicion for retinal metastasis, the patient underwent pars plana vitrectomy with retinal biopsy. Surgical techniques included the use of a chandelier illumination to enable bimanual manipulation of the retinal tissue, creation a focal retinal detachment with a 41-gauge subretinal cannula, diathermy demarcation of the biopsy site, localized retinectomy with vertical scissors, endolaser, and long-acting gas tamponade. Histopathologic examination revealed sheets of tumor cells with pleomorphic nuclei and positive staining for cytokeratins consistent with metastatic adenocarcinoma. The patient subsequently underwent external beam radiation and was alive 10 months after presentation. This surgical technique may be valuable in select patients with retinal metastasis for diagnostic, therapeutic, and counseling purposes.
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