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Microscopic aspects of HRG. A) A foreign body type granulomatous reaction with multinucleated giant cells arranged around hyaline-like eosinophilic areas in an inflamed fibrous connective tissue (original magnification; 20 x, H.E.). B,C) Hyaline ring structures surrounded by intense chronic inflammatory infiltrate and multinucleated giant cells (original magnification; 40 x, H.E.). D) Hyaline ring area positive for PAS and resistant to diastase digestion (40 x).
