Pulmonary myxoma in a sheep
1Department of Pathology, Faculty of Veterinary Medicine, University of Yuzuncu Yil, Zeve Kampusu, 65080 Van, Turkey. fatmasayn@hotmail.com
Veterinary Pathology
|January 30, 2009
Summary
A rare pulmonary myxoma was identified in a sheep's lung. Histological and immunohistochemical analysis confirmed the diagnosis of this uncommon lung neoplasm.
Area of Science:
- Veterinary Pathology
- Comparative Oncology
Background:
- Pulmonary myxomas are rare neoplasms in animals.
- Neoplasms in sheep lungs require accurate diagnosis for effective management.
Purpose of the Study:
- To describe the clinicopathological features of a pulmonary myxoma in a sheep.
- To aid in the diagnosis of similar rare lung tumors in livestock.
Main Methods:
- Gross examination of a lung mass discovered at slaughter.
- Histopathological evaluation of tumor tissue.
- Immunohistochemical staining for specific cellular markers (vimentin, cytokeratins, S-100, smooth muscle actin, desmin, p53).
Main Results:
- A well-circumscribed, lobulated mass was found in the left lung.
- Histology revealed spindloid to stellate cells within a myxoid matrix.
- Tumor cells were positive for vimentin and negative for other tested markers.
Conclusions:
- The findings support the diagnosis of pulmonary myxoma based on morphology and immunohistochemistry.
- This case adds to the limited literature on pulmonary myxomas in sheep.
- Immunohistochemistry is crucial for differentiating myxomas from other spindle cell tumors.
