Adenosquamous Carcinoma of the Upper Eyelid in a Dog.

Topics in Companion Animal Medicine
Samanta NardiF Millanta

Abstract

A 12-year-old, male mongrel dog was presented for a 6-month history of a progressive eyelid mass of the right upper eyelid. The dog's medical history reported long-term bilateral topical application of 0.03% tacrolimus ophthalmic ointment for third eyelid plasmoma and treatment cycles with systemic corticosteroids for a long-standing atopic dermatitis. Complete physical and ophthalmologic examination of the dog as well as complete blood count, serum biochemical analysis, urinalysis, thoracic radiographs, and abdominal ultrasonography were performed. The mass involved the skin and the margin of the upper eyelid, which was ulcerated. Conjunctival hyperemia, and the thickening and partial depigmentation of the third eyelid due to plasmoma were present. The plasmoma was observed bilaterally. Histological examination of the eyelid mass showed an invasive proliferation of malignant epithelial cells with intermixing of both adenocarcinomatous and malignant squamous cell components. An eyelid adenosquamous carcinoma was diagnosed. To the best of the authors' knowledge, this is the first report on an adenosquamous carcinoma of the eyelid in a dog. Immunosuppression has been found to be a significant clinical risk factor for cutaneous ad...Continue Reading

References

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