Peer-reviewed veterinary case report
Eye swelling and discharge from lymphoma in an 8.5-year-old ewe
By Rushton, James O et al.·Published in Tierarztliche Praxis. Ausgabe G, Grosstiere/Nutztiere·2017·The Eye Clinic, United Kingdom·View original on PubMed →
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Original publication title: Ocular involvement of multicentric malignant B-cell lymphoma in a ewe. A case report.
- Species:
- sheep
Plain-English summary
An 8.5-year-old female mountain sheep was brought in with bulging eyes, difficulty closing her eyelids, and bloody eye discharge. She also had swelling around her eyes and other masses on her body. After various tests, the vet diagnosed her with malignant B-cell lymphoma, a type of cancer. Unfortunately, her condition worsened quickly, leading to painful eye ulcers, and she was humanely euthanized. This case highlights a rare occurrence of this type of cancer affecting the eyes in sheep.
People also search for: sheep eye problems · ewe cancer treatment · sheep lymphoma symptoms
Abstract
An 8.5-year-old, 98 kg female mountain sheep presented with bilateral exophthalmos with reduced retropulsion of the globes, impairing physiologic eyelid closure, sanguineous ocular discharge, as well as swelling of the eyelids and periocular skin. Bilateral vitreal hemorrhage hindering examination of the fundus was further noticed. Systemic signs included reduced general demeanour, presence of a firm mass in the left half of the mammary gland, multiple masses in the area of the vulva and a mass between the shoulder blades. Complete diagnostic work-up, i.  e. complete blood count, blood chemistry and coagulation status, fine needle aspiration of periocular swellings and incisional biopsy of the vulvar masses revealed a diagnosis of malignant B-cell lymphoma. Due to the deterioration in general demeanour and rapid progression of exophthalmos, resulting in bilateral corneal ulceration, despite symptomatic medical treatment, the ewe was humanely euthanized. Gross necropsy and histopathology of select tissue samples confirmed the diagnosis of multicentric malignant B-cell lymphoma. To the authors' knowledge, this is the first report of multicentric malignant B-cell lymphoma involving the ocular adnexa in sheep.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/28203686/