case_images: PMC11659659_01
case_images: Initial radiograph. There are joint space narrowing, erosions, and subchondral sclerosis involving several PIP and DIP joints of both hands. Of note, periarticular calcifications were found around the second DIP and PIP, third PIP, and third MCP joints on the right and the second PIP joint on the left (thick arrows). PIP: proximal interphalangeal, DIP: distal interphalangeal, MCP: metacarpophalangeal.
case_images: jrd-32-1-66-f1.jpg
case_images: PMC11659659_01_jrd-32-1-66-f1.jpg
case_images: F1
case_images: Of note, we observed periarticular calcifications around the second DIP and PIP, third PIP, and third metacarpophalangeal (MCP) joints on the right and the second PIP joint on the left (thick arrows, Figure 1).
case_images: Follow-up radiograph. Three years later, all previously observed periarticular calcifications disappeared. The right second PIP and third MCP joints showed minimal disease progression (thin arrows). However, we observed ankyloses of the right second DIP and the left second PIP joints (thick arrows) and joint space loss with erosions of the right third PIP joint (arrow head). Additionally, there were ankyloses of the left fourth and fifth DIP joints and severe erosions of the left fourth PIP joint, which had not been affected by calcific periarthritis in the initial radiograph. PIP: proximal interphalangeal, MCP: metacarpophalangeal, DIP: distal interphalangeal.
case_images: jrd-32-1-66-f2.jpg
case_images: PMC11659659_01_jrd-32-1-66-f2.jpg
case_images: F2
case_images: The right second PIP and third MCP joints showed minimal disease progression (thin arrows, Figure 2). However, we observed ankyloses of the right second DIP and the left second PIP joints (thick arrows, Figure 2) and joint space loss with erosions of the right third PIP joint (arrow head, Figure 2).