Systemic lupus erythematosus with multicentric reticulohistiocytosis: A case report

Figure 1 The patient was admitted to the hospital with new skin nodules on the distal interphalangeal of the hands and feet and a mass over the right sternoclavicular joint. A and B: Papulonodular lesions over the interphalangeal joint of the both hands; C: Feet; D: Right sternoclavicular joint. Scale bar = 50 μm.

Figure 2 X-ray of both hands showed bone erosion at the distal interphalangeal joints with appearance of a pencil-in-cup deformity and articular soft tissue swelling.

Figure 3 Immunohistochemical staining (with 40 × magnification). A: Hematoxylin-eosin stain; B: Acid-fact stain; C: Positive for CD68; D: Negative for S100). Scale bar = 50 μm.