Amyloid arthropathy: possible association with chondrocalcinosis

Area of Science:

• Rheumatology
• Orthopedics
• Internal Medicine

Background:

• Amyloid arthropathy is often associated with dysproteinemia.
• Chondrocalcinosis, or pseudogout, involves calcium pyrophosphate crystal deposition in cartilage.
• The interplay between amyloidosis and chondrocalcinosis is not well-understood.

Observation:

• Three patients presented with symptomatic articular and periarticular amyloidosis.
• These patients also exhibited chondrocalcinosis.
• None of the patients had detectable dysproteinemia.

Findings:

• The reported cases demonstrate symptomatic amyloid arthropathy co-occurring with chondrocalcinosis.
• The absence of dysproteinemia in these patients suggests alternative pathways for amyloid deposition in joints.
• Clinical features and potential pathogenesis are discussed for these unique cases.

Implications:

• These findings broaden the understanding of amyloid arthropathy, suggesting dysproteinemia is not universally required.
• The association with chondrocalcinosis may indicate shared or interacting pathomechanisms.
• Further research into the pathogenesis of amyloidosis in the absence of dysproteinemia is warranted.