Fig. 7
![Fig. 7](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs40246-021-00362-z/MediaObjects/40246_2021_362_Fig7_HTML.jpg)
Rosai–Dorfman disease. Histopathological findings of the skin biopsy from the patient III.20 showed a dense inflammatory cell infiltrate, rich in plasma cells and histiocytes (a, HE*40), stained positive with CD68 (b, × 400) and S-100 protein (d, × 400) immunohistochemistry with emperipolesis/lymphocytophagocytosis (c, HE*400)