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Rheumatoid polyarthritis – subcutaneous nodule

Rheumatoid polyarthritis – subcutaneous nodule

Rheumatoid polyarthritis – subcutaneous nodule

Rheumatoid polyarthritis – subcutaneous nodule

 

  • In severe rheumatoid arthritis subcutaneous rheumatoid nodules occur, mostly in the arm pit or around the elbow joint. These can be also found in lungs, spleen, pericardium, myocardium etc.
  • Histologically: central area of fibrinoid necrosis, surrounded by a layer of epitheloid histiocytes, multiple lymphocytes and plasma cells.

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