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Uterine angiolipoleiomyoma in a dog
1Département de Pathologie et Microbiologie, Faculté de Médecine Vétérinaire, Université de Montréal, St-Hyacinthe, PQ, Canada. boisclaj@magellan.umontreal.ca
Veterinary Pathology
|December 6, 2001
Summary
A rare uterine tumor, angiolipoleiomyoma, was identified in a Pomeranian. This benign choristomatous tumor contains adipose, smooth muscle, vascular, cartilage, and bone tissues.
Area of Science:
- Veterinary Pathology
- Comparative Oncology
Background:
- Uterine tumors are uncommon in domestic animals.
- Angiolipoleiomyomas are rare benign tumors typically found in the human uterus.
Observation:
- An 11-year-old Pomeranian presented with a large, well-defined intramural uterine mass.
- The mass contained mature adipose tissue, smooth muscle cells, anomalous arteries, and islands of cartilage and bone.
Findings:
- Histologic and immunohistochemical analysis revealed features consistent with angiolipoleiomyoma.
- Smooth muscle cells stained positive for desmin; adipocytes and chondrocytes were positive for S-100 protein.
- This represents the first reported veterinary case of uterine angiolipoleiomyoma, suggesting a choristomatous origin.
Implications:
- This finding expands the differential diagnosis for uterine masses in animals.
- Highlights the potential for rare human tumors to occur in veterinary species.
- Further research into the etiology and behavior of such choristomatous tumors is warranted.