tailieunhanh - Báo cáo khoa học: "Histology of two rice bodies isolated from the stifle of an adult draught horse stallion"

Tuyển tập các báo cáo nghiên cứu khoa học quốc tế về bệnh thú y đề tài: Histology of two rice bodies isolated from the stifle of an adult draught horse stallion | J. Vet. Sá. 2006 7 1 83-85 Short Communication JOURNAL OF Veterinary Science Histology of two rice bodies isolated from the stifle of an adult draught horse stallion Nicole Schneider L2 3 Marianne Heimann4 Jean-Philippe LejeuneDenis Verwilghen Ginette p. Deby-Dupont2 Didier A. Serteyn1-2J 1 Institute of General Anaesthesiology and Surgical Pathology ofLarge Animals and1 Center of Oxygen. Research and Development University of Liège. Bat B 6a CORD Chimie . 4000 Sort Tilman. Belgium European Horse Centre of Mont le Sole 6698 Grand-Halleux. Belgium fnstitut de Pathologic et Genetique . Loverval. Belgium In the human and equine species different kinds of free floating intra-articular particles are related to certain disorders. Osteochondral fragments formed during osteochondrosis dissecans are the most common finding in the equine species whereas in humans rice bodies due to rheumatoid arthritis are more frequent. Herein we report a thứd type of floating body inside the stifle of an adult draught horse stallion in macroscopic appearance similar to articular rice bodies known in humans. As revealed by histologic examination the two particles consist of polypoid degenerated structures derived from synovial villi. Theứ formation was probably induced by ischemia. Key words joint rice body draught horse synovium histology Generally spoken three different intra-articular nodules exist. Galvez et al. 4 observed that in humans most of the rice bodies developing in association with rheumatoid synovial fluid sediments were composed of partially or completely hyalinized fibrinous material with macrophages. The microscopic rice bodies sometimes expressed a central fibrosis. The authors believe that these intra-articular floating particles derived from cells entrapped within a fibrin network during synovitis. In some rice bodies neutrophils and to a lesser extent mononuclear cells were identified 4 Mononuclear cells where predominant in other although typically .