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Multiple Distinct Mammary Neoplasms with Different Histopathological Features in an 11-Year-Old Female Bulldog
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S. Shokrpoor *   , M. Daneshnia , F. Dardmeh , H. Alipour |
| Department of Pathology and Clinical Pathology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran |
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Abstract: (8 Views) |
| Canine mammary tumors (CMTs) comprise a morphologically diverse group of neoplasms with variable epithelial, myoepithelial, and mesenchymal differentiation. Although multiple mammary masses are frequently identified in individual dogs, concurrent lesions within the same patient may represent distinct neoplastic entities with different histopathological characteristics and biological behavior. An 11-year-old female Bulldog weighing 27 kg was referred with three mammary masses located in the right inguinal, left caudal abdominal, and right cranial thoracic mammary glands. Following surgical excision, all specimens were submitted for histopathological evaluation. Routine hematoxylin and eosin (H&E) staining revealed three distinct mammary neoplasms: a well-differentiated squamous cell carcinoma (SCC), a grade I tubular carcinoma, and a benign mixed tumor (BMT). The simultaneous occurrence of three histologically distinct mammary neoplasms in a single senior dog represents a rare and noteworthy pathological finding. This case highlights the importance of submitting and evaluating each mammary mass individually, as multiple lesions within the same patient may represent distinct neoplastic entities requiring different diagnostic, prognostic, and therapeutic considerations. |
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| Keywords: Benign mixed tumor, Bulldog, Canine mammary neoplasms, Squamous cell carcinoma, Tubular carcinoma |
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Full-Text [PDF 1641 kb]
(3 Downloads)
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Type of Study: case report |
Subject:
Special
Received: 2026/09/6
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