Steroid-Resistant Extranodal Rosai-Dorfman Disease of Cheek Mass and Ptosis Treated with Radiation Therapy
Figure 2
Biopsy showing (a) large histiocytes found with vesicular nuclei and emperipolesis. And (b) immunohistochemistry demonstrated the positivity for S-100, CD68, and CD45 and negativity for CD1a, consistent with the diagnosis of extra-nodal RDD.
