A 30-year-old female patient with psoriasis presents with pain in the toes. Which of the following are the radiographic findings that are most consistent with psoriatic arthritis?
- Sclerosis with subchondral cyst formation This is often seen with post-traumatic arthritis.
- Pencil-in-cup deformity of the digits This results from periarticular erosions and bone resorption, giving the appearance of a pencil in a cup.
- Diffuse resorption This is typical of rheumatoid arthritis.
- Multiple dislocated joints This is typical of rheumatoid arthritis.