A 42-year-old woman with lupus develops a painful, swollen finger without Trauma. Discover the cause behind this unusual presentation in an immunosuppressed patient.
A 42-year-old woman presented with a 1-week history of swelling and pain in the fifth finger of her left hand. She reported no related trauma. She had systemic lupus erythematosus, treated with mycophenolate mofetil and prednisone. Physical examination of the affected finger revealed soft-tissue swelling, with erythema and warmth, that was most prominent between the proximal and distal interphalangeal joints, sparing the fingertip. The patient’s husband had recently traveled to China and developed a cough soon after his return home. What is the cause of the patient’s finger swelling?
What is the most likely diagnosis?
Dactylitis, Extrapulmonary manifestation of tuberculosis, Immunosuppression, Mycobacterium tuberculosis, Systemic Lupus Erythematosus
