Peer-reviewed veterinary case report
Surgery outcomes for conjunctival tumors in 52 dogs
By Richardson, Sarah & Deykin, Anna R·Published in Veterinary ophthalmology·2021·Brisbane Veterinary Specialist Centre and the Australian Animal Cancer Foundation, Australia·View original on PubMed →
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Original publication title: Surgical treatment of conjunctival hemangioma and hemangiosarcoma: A retrospective study of 52 dogs.
- Species:
- dog
Plain-English summary
A group of 52 dogs, mostly Border Collies around 8 years old, had surgery to remove growths on their eyes called conjunctival hemangiomas (HA) and hemangiosarcomas (HSA). After surgery, about 10% of the tumors came back, but most dogs did well and the surgery was generally successful. The tumors were located mainly on the outer part of the eye and the third eyelid. The study found that while some tumors were harder to remove completely, the type of tumor didn't affect the chances of recurrence. Overall, surgical treatment is likely to be effective for these eye tumors.
People also search for: dog eye tumor surgery · Border Collie conjunctival hemangioma · dog hemangiosarcoma treatment
Abstract
OBJECTIVE: To review cases of canine conjunctival hemangioma (HA) and hemangiosarcoma (HSA) treated surgically at a referral center to establish success of surgical management, recurrence rates, and long-term outcomes for patients. ANIMALS STUDIED: Retrospective record review of dogs that underwent surgery to remove histologically diagnosed conjunctival HA or HSA between April 2004 and April 2020 to collect data on signalment, tumor location, interval between initial presentation and surgery, tumor diagnosis, surgical dose, surgical margins, tumor size, recurrence and survival times. RESULTS: A total of 52 dogs (60 tumors) were included. The mean age of affected dogs was 8.69 years; the most affected breed was the Border collie (n = 13, 25%). 28 tumors were HA (46.67%) and 32 HSA (53.33%). Tumors occurred in three locations: the lateral bulbar conjunctiva (n = 37, 61.67%), the third eyelid margin (n = 19, 31.67%), and the ventral conjunctival fornix (n = 4, 6.67%). There was no site predilection for HA versus HSA. 97% of tumors occurred in non-pigmented tissue. Corneal invasion was more likely to be a feature of malignant tumors. Five tumors were incompletely excised, one of which recurred. There was no statistical difference in likelihood of incomplete excision between HSA and HA. Six tumors (10%) recurred. HSA was not statistically more likely to recur than HA. Recurrence times ranged from 5 weeks to 1 year. CONCLUSION: Surgical treatment of conjunctival HA and HSA is likely to be curative. There is a recurrence rate of 10% regardless of tumor type, and recurrence may be late in the course of the disease.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/34402571/