Figure 2
From: ALK rearrangement and overexpression in epithelioid fibrous histiocytoma
Binucleate tumor cells are commonly present in epithelioid fibrous histiocytoma and may be a helpful clue to the diagnosis (a); cytoplasmic expression of ALK is seen in this case (b). Epithelioid fibrous histiocytoma with a fibrous stroma and focally spindled morphology (c); tumor cells are diffusely positive for ALK expression (d).
