Peer-reviewed veterinary case report
Cat with unusual D-shaped pupils caused by eye lymphoma
By Nell & Suchy·Published in Veterinary Ophthalmology·1998·View original on Crossref →
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Original publication title: ‘D‐shaped’ and ‘reverse‐D‐shaped’ pupil in a cat with lymphosarcoma
- Species:
- cat
Plain-English summary
A 7-year-old female spayed European shorthair cat was brought in because she was having trouble seeing and had an unusual green reflection in her right eye. The vet found that her right pupil was shaped like a "D" and her left pupil was shaped like a reverse "D." Both eyes had signs of inflammation and damage, leading to a diagnosis of lymphosarcoma, a type of cancer affecting her intestines and eyes. Unfortunately, the cat passed away, and the unusual pupil shapes were found to be due to cancer affecting the iris rather than a neurological issue.
People also search for: cat eye problems · cat lymphosarcoma symptoms · why is my cat's pupil misshapen
Abstract
A 7‐year‐old female spayed European shorthair cat was presented because of visual reduction and a green reflex in the right eye. Examination revealed a ‘D‐shaped’ pupil in the right eye and a ‘reverse‐D‐shaped’ pupil in the left eye. Both eyes showed fibrinous anterior uveitis with exudates in the anterior chamber and precipitates on the posterior surface of the cornea. In both eyes a chorioretinitis was diagnosed which caused partial retinal detachment and peripapillary oedema in the left eye. Histopathology revealed intestinal and ocular lymphosarcoma. The aberrant pupil shapes which persisted after death were due to infiltration of the iris stroma and were not caused neurologically. The observation that in both eyes only the medial parts of the iris were affected could not be explained.
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Search related cases →Original publication on Crossref: https://doi.org/10.1046/j.1463-5224.1998.00010.x