title: Immunohistochemical distribution of lymph capillaries and blood capillaries in the synovial membrane in cases of internal derangement of the temporomandibular joint.
abstract: The distribution of lymph capillaries and blood capillaries in the synovial membrane was examined immunohistologically with anti-human collagen IV antibody and anti-human von Willebrand factor in 26 human temporomandibular joint (TMJ) samples comprising discs with adjoining synovial membrane from 10 control TMJs and from 16 TMJs with internal derangement. Three different distribution types were observed in the synovial membrane. In the control samples, the occurrence of blood capillaries and lymph capillaries was rare. In mildly hyperplastic synovitis, lymph capillaries were observed just beneath the surface of the synovial membrane, whereas blood capillaries occurred in a little deeper layer of the synovial membrane. In a severely hyperplastic synovitis, both lymph and blood capillaries were observed frequently. The present results suggest that the different distribution patterns of lymph capillaries and blood capillaries reflect the degree of synovitis but can not be attributed to specific clinical symptoms.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Faculty of Medicine, Kyoto University, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Yoshida
authors.forename: S
authors.initials: S
authors.lastname: Fujita
authors.forename: M
authors.initials: M
authors.lastname: Nishida
authors.forename: T
authors.initials: T
authors.lastname: Iizuka
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002196:Capillaries / Q000473:pathology*; D003094:Collagen / Q000032:analysis; D005260:Female; D006801:Humans; D006965:Hyperplasia; D007150:Immunohistochemistry; D004204:Joint Dislocations / Q000473:pathology*; D008208:Lymphatic System / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000473:pathology; D013583:Synovial Membrane / Q000098:blood supply / Q000473:pathology*; D013585:Synovitis / Q000473:pathology; D013704:Temporomandibular Joint / Q000098:blood supply / Q000473:pathology; D019224:Temporomandibular Joint Disc / Q000098:blood supply / Q000473:pathology*; D013705:Temporomandibular Joint Disorders / Q000473:pathology; D014841:von Willebrand Factor / Q000032:analysis
chemical_list: D014841:von Willebrand Factor; D003094:Collagen