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  • Title: Histopathologic changes of the temporomandibular joint disk in patients with chronic arthritic disease. A comparison with internal derangement.
    Author: Bjørnland T, Refsum SB.
    Journal: Oral Surg Oral Med Oral Pathol; 1994 Jun; 77(6):572-8. PubMed ID: 8065718.
    Abstract:
    Histopathologic examination was performed of the disk and the posterior attachment extirpated from 17 temporomandibular joints from 15 patients with chronic arthritic disease. Seven patients had rheumatoid arthritis (including two with juvenile type), five had ankylosing spondylitis, and three had psoriatic arthropathy, which affected more joints than the temporomandibular joint. Specimens removed from 16 temporomandibular joints from 15 patients with internal derangement were used for histopathologic comparison. In both groups of patients, inflammatory changes were observed, but no specific histopathologic signs could distinguish the groups. Patients with chronic arthritic disease seemed to have more pronounced changes of vascular proliferation, perivascular cellular infiltrate, inflammatory cells, and fibrosis throughout the soft tissues. Destruction of the disk was another finding evident in patients with chronic arthritic temporomandibular joint disease; there was no visible disk structure in 8 of these 17 joints, compared with 1 of the 16 joints in the internal derangement group.
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