Figure 5.
A. The classical RS cell is binucleate, each nucleus contains a prominent eosinophilic nucleolus with perinucleolar halos giving the cell an “owl-eye” appearance (H&E). B. The LP cell, the neoplastic cell in NLPHL, has a multilobate/folded nucleus with smaller basophilic nucleoli giving the cell a “popcorn” appearance (H&E).