Right hand radiograph in a patient with advanced rheumatoid arthritis. There are extensive marginal erosions and ulnar subluxations at the metacarpophalangeal (MCP) joints. Erosions are also present at PIP joints. (Courtesy of Dr. A. Donovan)
Right wrist radiograph in a patient with rheumatoid arthritis. The arrows show erosions at the ulnar styloid and distal radius. Asterisk shows additional erosions at the carpus. (Courtesy of Dr. A. Donovan)
Left hip joint radiograph shows severe superior joint space narrowing, subchondral cysts, subchondral sclerosis and marginal osteophytes. These are radiographic hallmarks of osteoarthritis. (Courtesy of Dr. A. Donovan)
Bilateral hands in a patient with lupus. Note finger flexion and extension deformities in the absence of erosions. (Courtesy of Dr. A. Donovan)
Right wrist radiograph shows chondrocalcinosis involving the triangular fibrocartilage complex (arrow). (Courtesy of Dr. A. Donovan)
