Well-differentiated biphasic synovial sarcoma in the atlanto-occipital joint of a Holstein cow.
Vet Pathol
; 41(6): 687-91, 2004 Nov.
Article
in En
| MEDLINE
| ID: mdl-15557078
ABSTRACT
A 7-year-old Holstein cow developed a large cystic mass in the region between the atlantoaxis and larynx. The mass extended to the synovium in the atlanto-occipital joint. Many villous projections were present on the inner surface of the tumor tissue, and irregular clefts were formed in the inside. Two cell types, epithelioid-like synovioblasts and spindle cells, were present. Immunohistochemical analysis showed that the cells stained positively for cytokeratin (AE1/AE3) and vimentin. Both cells had similar fine structures ultra-structurally. Vacuoles present in the cytoplasm were full of an acid mucous substance. The tumor was diagnosed as a well-differentiated biphasic synovial sarcoma. This is the first report of a rare case of synovial sarcoma, from the viewpoint of its origin.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Atlanto-Occipital Joint
/
Cattle Diseases
/
Sarcoma, Synovial
Limits:
Animals
/
Pregnancy
Language:
En
Journal:
Vet Pathol
Year:
2004
Document type:
Article
Affiliation country:
Japan