LESS COMMON ARTHRITIDES

SLE
Non-erosive
Jacouds arthropathy
Deforming
Ulnar deviation of fingers

SCLERODERMA
Resorption of soft tissue at fingertips (Raynaud’s)
Subcutaneous calcification
Erosion of terminal tufts
Esophageal abnormalities

ALKAPTONURIA
Genetic defect homogentisic acid oxidase
Excess homogentisic acid deposited in large joints and polymerizes (turns black)
Black urine
Disc space narrowing and calcification
Deposits in other organs such as dura mater