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Peer-reviewed veterinary case report

Malignant eye tumor causing swelling in a cockatiel's eye

By Bras, I Dineli et al.·Published in Veterinary ophthalmology·2005·Department of Veterinary Clinical Sciences, United States·View original on PubMed

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Original publication title: Immunohistochemical characterization of a malignant intraocular teratoid medulloepithelioma in a cockatiel.

Species:
bird

Plain-English summary

A 3-year-old cockatiel was brought in because its right eye was bulging, a condition known as buphthalmia. This issue followed a traumatic event five months earlier, which had led to a diagnosis of cataract and secondary glaucoma. Imaging showed a large mass in the eye socket, prompting the veterinarian to recommend surgery to remove the eye (enucleation) for both diagnosis and to relieve the bird's symptoms. The final diagnosis was a malignant tumor called teratoid medulloepithelioma.

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Abstract

A 3-year-old cockatiel was presented for evaluation of a buphthalmic right eye (OD). The history included a traumatic event 5 months prior to presentation, and the referring veterinarian diagnosed cataract and secondary glaucoma. Computed tomography of the bird's orbital region revealed a large right orbital soft tissue mass that extended lateral to the orbital rim with obliteration of the globe without bone involvement. There was also no evidence of metastatic disease within the lungs or any abnormalities within the celomic cavity, therefore enucleation was recommended to achieve a histopathologic diagnosis and prognosis, and to palliate the clinical signs. Final diagnosis was malignant intraocular teratoid medulloepithelioma.

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Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/15644102/