Current Therapeutics and Future Perspectives to Ocular Melanocytic Neoplasms in Dogs and Cats
2021
Tarcísio Guerra Guimarães | Karla Menezes Cardoso | Pedro Tralhão | Carlos Miguel Marto | Nuno Alexandre | Maria Filomena Botelho | Mafalda Laranjo
Neoplasms of melanocytic origin are diseases relevant to dogs and cats’ ophthalmic oncology due to their incidence, potential visual loss, and consequent decrease in life quality and expectancy. Despite its non-specific clinical presentation, melanocytic neoplasms can be histologically distinguished in melanocytomas, which present benign characteristics, and malignant melanomas. The diagnosis often occurs in advanced cases, limiting the therapeutic options. Surgery, cryotherapy, radiotherapy, photodynamic therapy (PDT), and laser are currently available therapeutic strategies. As no clinical guidelines are available, the treatment choice is primarily based on the clinician’s preference, proficiency, and the owner’s financial constraints. While surgery is curative in benign lesions, ocular melanomas present a variable response to treatments, besides the potential of tumour recurrences or metastatic disease. This review presents the currently available therapies for ocular melanocytic neoplasms in dogs and cats, describing the therapeutic, indications, and limitations. Additionally, new therapeutics being developed are presented and discussed, as they can improve the current treatment options.
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