SYNOVIAL SARCOMA CASES IN PSITTACINES

摘要

Synovial sarcomas are relatively uncommon malignant tumors in animals arising from synovioblastic mesenchyme, usually in close proximity to synovial structures such as joints, tendons, or bursae. The neoplasm is characterized histologically by being composed of two intermingled cellular components, a synovioblastic or epitheliolid component and a fibroblastic component, where the proportions can vary considerably from tumor to tumor. The disease has been well described for humans, but less so in animals where cases have mainly been seen in dogs. The clinical characteristics differ between human and canine cases, and probably also compared to avian cases. Previously only one avian case has been reported, in a Moluccan cockatoo.