Diagnosis: Bone Infarcts in Systemic Lupus Erythematosus.
Comments: Bone infarcts are seen in a multitude of conditions, predominantly at our institution from previous trauma, steroid use, and in the setting of a vasculitis. Infarcts associated with Lupus are thought to be in part secondary to steroid treatment but also secondary to the underlying vasculitis that afflicts multiple organ systems in these patients. The nonerosive subluxation, or Jacoud type arthropathy of the hand is classic for SLE, and helps in narrowing the differential of a bone infarct.