MedPix™ Case: 10905 - Medical Image Database, Teaching File, and Radiology Atlas

Case 10905 - Figure 1a :: Caption and Credits- :: ::

Erosive Osteoarthritis :: Radiographic Imaging diagnosis

Erosive Osteoarthropathy

AP :: XR - Plain Film || ACR Codes: 4.2

The bones are diffusely osteopenic. Findings typical of osteoarthritis include distal greater than proximal joint space narrowing, osteophytosis, and sclerosis, with typical degenerative findings at the thumb carpal-metacarpal joint also appreciated. A small subchondral cyst is present at the distal head of the middle finger proximal phalanx.

Additionally, central erosions are present at the DIPâ€™s of the ring and index fingers, as well as the PIPâ€™s of the small and middle fingers (with subluxations present at the small finger PIP as well as the thumb and index finger MCPâ€™s). The characteristic â€œgull-wingâ€ appearance is best appreciated at the ring finger DIP.

Original Source: Joel McFarland
Submitted by: Joel McFarland -
Affiliation: National Naval Medical Center Bethesda
Approved By: Albert V Porambo -
Affiliation: Civilian Medical Center
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