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Characterisation of complex karyotype changes in a canine thyroid adenoma
1Institute of Animal Breeding and Genetics, Veterinary University, Vienna, Austria.
Research in Veterinary Science
|May 1, 1991
Summary
A German shepherd dog was diagnosed with thyroid alveolar adenoma. Cytogenetic analysis revealed complex karyotype changes, including specific centric fusions in tumor cells.
Area of Science:
- Veterinary Pathology
- Canine Oncology
- Cytogenetics
Background:
- Thyroid tumors are uncommon in dogs.
- Alveolar adenoma is a specific type of thyroid neoplasm.
Observation:
- A 14-year-old German shepherd presented with a thyroid mass.
- The tumor was histopathologically diagnosed as an alveolar adenoma.
Findings:
- Cytogenetic evaluation of tumor cells identified two distinct ranges of chromosome numbers.
- G-band analysis revealed specific centric fusions: 2/32, 5/26, 6/11, 8/11, 9/23, and 14/31.
- These findings indicate a complex karyotype alteration in the canine thyroid tumor.
Implications:
- Understanding the cytogenetic profile of canine thyroid tumors can aid in diagnosis and prognosis.
- This case contributes to the knowledge base of genetic abnormalities in animal neoplasms.
- Further research may explore the role of these chromosomal changes in tumor development.