Peer-reviewed veterinary case report
Conjunctival vascular tumors in cats from 1993 to 2004
By Pirie, Chris G & Dubielzig, Richard R·Published in Veterinary ophthalmology·2006·Department of Pathobiological Sciences, United States·View original on PubMed →
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Original publication title: Feline conjunctival hemangioma and hemangiosarcoma: a retrospective evaluation of eight cases (1993-2004).
- Species:
- cat
Plain-English summary
A 10-year-old neutered male Domestic Short-haired cat was diagnosed with a conjunctival tumor in the left eye after showing signs of irritation for about four months. The tumor was surgically removed, and since it was a hemangiosarcoma, the vet performed additional surgery to ensure complete removal. Fortunately, there were no signs of cancer spreading to other parts of the body, and the cat did not experience any recurrences after treatment. Surgical excision was effective in this case, and the cat is expected to recover well.
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Abstract
The purpose of this retrospective study was to evaluate feline primary conjunctival vascular tumors of endothelial origin. Eight cases (six hemangiomas, two hemangiosarcomas) from a collection of 3460 feline submissions between 1993 and 2004 were evaluated using routine hematoxylin and eosin (H&E). Signalment, location, size, duration, epithelial pigmentation, margins, adjuvant therapy, outdoor activity, and geographic location, comparing ultraviolet (UV) radiation levels by state, were recorded. Follow-up information was available for five cases. In this study, the average age was 10.6 years, with neutered males over-represented. The Domestic Short-haired cat was most commonly affected. The most common anatomic site was the nictitating membrane, with the left eye preferentially affected. The average size and duration, prior to presentation, was 7.5 mm and 4.4 months, respectively. Seven of eight cases were devoid of epithelial pigmentation in nonaffected areas and the majority of cases were from states with high annual UV-light exposure. Only cases of hemangiosarcoma underwent surgical re-excisions following incomplete excision; however, no further recurrences were reported. No cases evaluated had evidence of metastatic disease at the time of excision. Surgical excision alone may be curative. However, recurrence is possible. These tumors demonstrate similar predilection sites and involvement of nonpigmented epithelium, as is true in canine cases, which may relate to risk factors as well.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/16771757/