Bilateral adrenocortical adenomas causing adrenocorticotropic hormone-independent Cushing’s syndrome: A case report and review of the literature

Figure 4 Immunohistochemical staining of the right adrenal adenoma (×100). Areas negative for chromogranin A (CgA) (A) and cytokeratin (CK) (B), where some tumor cells exhibited positive staining for inhibin (C), synaptophysin (Syn) (D), and MelanA (E). Most parts of the tumor show a proliferation index < 2% (F) and spotty positivity for S100 (G).