Fig. 4

A Case 1: CCC (HE, 40X). B CCC: NAPSIN A: Positive stain (granular citoplasmatic stain) (IHC, 40X). C CCC: p53 aberrant, nuclear overexpression (IHC, 40X). D Case 2: Serous carcinoma (ESC) (HE, 40X). E ESC: p16 overexpression (IHC, 40X). F ESC: p53 aberrant stain, null type. Positive estromal cells (IHC, 40X). G Case 3: ESC (HE, 40X). H ESC: p53 aberrant, nuclear and citoplasmatic stain (IHC, 40X)