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Publications (3)2.19 Total impact

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    ABSTRACT: A 12-year-old male English Pointer was examined due to a soft-tissue swelling at the medial canthus of the right orbital region, which was causing facial deformity. The dog had epiphora, purulent nasal discharge, epistaxis, dyspnea, and progressive weight loss. An intraoral mass was observed near the right maxillary premolars. Neoplastic disease was diagnosed based on ancillary tests, which included blood work, skull and intraoral radiographs, ocular ultrasonography and computed tomography. Histopathology revealed transitional carcinoma involving the nasal and oral cavities, maxilla, bony orbit and retrobulbar space. Nasal tumors represent approximately 2% of all tumors diagnosed in this species. Transitional carcinoma is the second most common type of malignant epithelial tumor in the nasal sinuses. This case illustrates the extensive destruction of the soft and bony tissues of the face, including the bony orbit that this type of tumor can cause.
    Arquivo Brasileiro de Medicina Veterinária e Zootecnia 08/2013; 65(4):1017-1023. · 0.27 Impact Factor
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    ABSTRACT: A female, eight-year-old, mixed-breed blue-eyed dog was presented for ophthalmic evaluation because its left eye had "changed color" one year previously. The before left eye was enucleated and submitted for evaluation. Histopathological analysis revealed an invasive neoplastic mass effacing most of the ventral aspect of the iris stroma. A diagnosis of an anterior uveal spindle cell tumor was made. Immunohistochemical results were strongly suggestive of a schwannoma, but some smooth muscle differentiation was also observed. Two and a half years after therapeutic enucleation there was no evidence of neoplasm recurrence or metastasis.
    Veterinary Ophthalmology 02/2013; · 0.96 Impact Factor
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    ABSTRACT: A 7-year-old, male mixed-breed dog was presented for evaluation of a well-delineated, pink, oval and slightly firm mass with a smooth regular surface that was expanding approximately 60% of the lower eyelid conjunctiva and the lateral canthus. The dog had a supposed primary B-cell lymphoma at the temporal canthus of the upper eyelid conjunctiva of the same eye that had been removed approximately 3 years earlier. No metastases were detected at either presentation. Histologically, the conjunctival lamina propria was effaced by a well-delineated, unencapsulated and expansile highly cellular neoplasm composed of sheets of round cells that were immunohistochemically positive for CD20 and CD79a negative for CD3. Based on the microscopic and immunohistochemical findings, a diagnosis of supposed primary B cell conjunctival lymphoma was made. Primary ocular and adnexal ocular lymphomas in dogs are rarely reported and their behavior is poorly characterized. Further tumor recurrence was not observed one year post operatively. This case was considered unusual because of its conjunctival involvement and the clinical course with recurrence after three years of a surgical therapeutic procedure.
    Veterinary Ophthalmology 04/2012; · 0.96 Impact Factor