Possible morphological substrates in the pathogenesis of rheumatoid arthritis in human finger joints

In conclusion, we state that curiosity-driven research after normal synovial folds within the PIP-joint of the finger confirms their actual location. Neurovascular bundles in the normal PIP-joint’s capsule, and neurons in lamellated corpuscles within the Proper Collateral Ligament, may shed new light on the pathogenesis of rheumatoid arthritis in human finger joints.