A mechanism of formation of desmosome-like structures between synovial intimal cells

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Abstract
Desmosomes or desmosome-like structures do not occur between normal human synovial cells but such structures do develop between the synovial cells in cases of traumatic arthritis, rheumatoid arthritis and villonodular synovitis. Morphological evidence is presented suggesting that such structures develop as a result of the interaction of fibrin trapped between synovial cells and the plasmamembrane of these cells.