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A patient presents with the clinical images shown in Figures A-C. Which of the following is true?
Most patients with this skin condition develop arthritis
All patients that develop arthritis are positive for HLA-B27
The skin lesions respond well to systemic anti-fungal therapy
Rheumatoid factor and ANA are usually positive
DIP erosions are often centripetal
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A 32-year-old man has a 10-month history of bilateral toe swelling and foot pain. A clinical photo showing his toes is shown in Figure A. On examination of his feet he has tenderness along the posterior tibial tendon bilaterally which worsens with single-leg heel rise maneuvers. Standing radiographs of the feet are normal without deformity of the lesser toes. A clinical photo of his fingernails are shown in Figure B. Which of the following diagnoses is MOST likely?
Scleroderma (systemic sclerosis)
A 47-year-old man complains of long standing pain involving the right index, middle, and ring fingers. A clinical image is shown in Figure A. A radiograph is provided in Figure B. Which of the following is the most likely diagnosis?