Abstract
We report a case of ochronotic arthropathy treated with total hip arthroplasty. The articular cartilage of the patient's femoral head and synovium displayed black pigmentation. Microscopically, the articular cartilage revealed reddish-brown pigmentation (particularly in deep cartilage), necrotic chondrocytes, and slight black pigmentation in the cytoplasm of chondrocytes. Electron microscopy revealed electron-dense material deposited predominantly along and between collagen fibers.
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Inoue, S., Iwata, Y., Yoh, K. et al. A case of ochronotic arthropathy treated with total hip arthroplasty. Mod Rheumatol 13, 270–276 (2003). https://doi.org/10.1007/s10165-003-0235-8
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DOI: https://doi.org/10.1007/s10165-003-0235-8