Tricoblastoma em cão: uma análise clínica, diagnóstica e terapêutica / Trichoblastoma in a dog: a clinical, diagnostic and therapeutic analysis
Souza, Valesca Ferreira Machado de; Pereira, Zayan Silva; Carneiro, Ianei de Oliveira; Gomes Júnior, Deusdete Conceição; Frade, Maria Talita Soares; Vieira, Layze Cilmara Alves da Silva.
Acta sci. vet. (Online);
48(suppl.1): Pub. 548, 11 nov. 2020. ilus
Artigo
em Português
| VETINDEX
| ID: vti-765622
Resumo
Background: Trichoblastoma is a rare skin neoplasm derived from the primitive hair follicle, having epithelial and mesenchymal components. Despite being commonly described as a benign tumor, there are reports in the literature of tumors with characteristics of malignant neoplasia. It affects adult dogs and cats, with no predilection for sex. Although rare, in studies in Brazil the pathology shows variable rates of occurrence. This work describes a case of tricoblastoma in a 4-year-old mixed breed dog, submitted to care at the Veterinary Hospital of the Federal University of Western Bahia (HVU-UFOB). Case: A 4-year-old male mixed breed dog with 7 kg of body weight, was referred to the HVU-UFOB. The main complaint reported by the canines tutor was an increase in volume in the region of the animals face, which evolved slowly, associated with itching, bleeding and sensitivity to touch. During the physical examination, a round, elevated mass was observed in the subcutaneous tissue of the left face, in the mandible region, with local alopecia. On palpation, the neoformation showed a firm consistency, well-defined and fluctuating, with no solutions for continuity or discomfort to touch. The animals physiological parameters were within the normal for the species. CBC, chest X-rays, abdominal ultrasound and aspiration cytology of the mass were requested. The blood count and image tests did not reveal any changes. On cytological examination, small, grouped basal epithelial cells were observed, characterized by a high nucleus-cytoplasm ratio, monomorphic nuclei and intensely basophilic and pigmented cytoplasm, a suggestive diagnosis of basal cell tumor. Due to the findings, an excisional biopsy of the mass was performed, with margins of 2 cm. The mass with its margins was sent for histopathological examination at the Animal Pathology Laboratory of the HVU...(AU)
Biblioteca responsável:
BR68.1
Localização: BR68.1
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