Peer-reviewed veterinary case report
Dog with a firm pink ear mass diagnosed as trichoblastoma
By M. Mani Bharathi·Published in Indian Journal of Veterinary Pathology·2025·View original on Crossref →
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Original publication title: Trichoblastoma in a dog: A case report
- Species:
- dog
Plain-English summary
A 5-year-old male Labrador was brought in with a pale pink mass on his ear that measured about 3 cm. After various tests, including blood work and imaging, the vet found no other issues, but a closer examination of the mass revealed it was a type of skin tumor called trichoblastoma. This tumor is made up of specific skin cells and was confirmed through additional testing. The dog was diagnosed with trichoblastoma, which is a benign tumor, and the vet can discuss treatment options based on the findings.
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Abstract
A five-year-old male Labrador with a mass in the ear pinna was brought to the Madras Veterinary College Teaching Hospital, Chennai. On clinical examination, the mass appeared pale pink in colour, firm in consistency with discrete lobulation and measured 3 cm in diameter. Haemato-biochemical studies and imaging assessments revealed no abnormalities while cytological findings of the mass showed basal epithelial cells arranged in a row which was suggestive of trichoblastoma. Histopathological examination revealed cuboidal to elongated neoplastic cells with pale eosinophilic cytoplasm arranged in ribbon pattern, supported by fibrovascular stroma which was confirmative of trichoblastoma. Immunohistochemical studies also confirmed the tumour by showing positive expression of cytokeratin. Based on the laboratory findings, the tumour was identified as trichoblastoma.
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Search related cases →Original publication on Crossref: https://doi.org/10.56093/tdxw2641