Fig. 4

Immunophenotype of the ectopic adrenocortical oncocytic adenoma. a Neoplastic cells were negative for GPC3 (IHC x 100). b The tumor cells were negative for HSA. Normal hepatocytes (lower left) were used as internal positive control (IHC x 100). c The Ki-67 index was 1 % (IHC x 100). d α-inhibin was positive in tumor cells and negative in hepatocytes (upper left) (IHC x 100). e Syn was positive in tumor cells (right) and negative in hepatocytes (left) (IHC x 100). f Melan A was positive in tumor cells (IHC x 100)