case_images: PMC8721678_01
case_images: Swelling of proximal interphalangeal and distal interphalangeal joints, consistent with psoriatic arthritis.
case_images: 10.1177_23247096211057702-fig1.jpg
case_images: PMC8721678_01_10.1177_23247096211057702-fig1.jpg
case_images: fig1-23247096211057702
case_images: Physical examination revealed tenderness and swelling in the bilateral wrists, proximal interphalangeal joints, distal interphalangeal joints, and ankles (Figure 1).
case_images: Roughening and cracking of skin on tips and sides of fingers, consistent with mechanic's hands.
case_images: 10.1177_23247096211057702-fig2.jpg
case_images: PMC8721678_01_10.1177_23247096211057702-fig2.jpg
case_images: fig2-23247096211057702
case_images: At this facility, DM became a more likely diagnosis due to mechanic's hands finding appreciated by the outside rheumatologist (Figure 2). Although the diagnosis of DM is confirmed by muscle biopsy, this facility deemed it unnecessary to perform a biopsy and decided to proceed with treatment.