Figure 2

(A) CT of adrenal cortical carcinoma: scattered calcification inside the tumor, the tumor is lobulated with an unclear boundary. (a) H&E staining of adrenal cortical carcinoma, magnification × 400: most cells are dark, with a patchy density showing nuclear abnormalities, clear nucleoli and nuclear mitosis, invading blood vessels or penetrating the capsule with extensive hemorrhage and necrosis. (B) CT of adrenal ganglioneuroma: nodule calcification inside the tumor. (b) H&E staining of adrenal ganglioneuroma, magnification × 400: scattered maturely differentiated gangliocytes are seen in unmyelinated nerve fibers. (C) CT of mature adrenal teratoma: patchy calcification with the CT value high as 500HU. (c) H&E staining of mature adrenal teratoma, magnification × 100: well differentiation tissues contain 3 germ cell layers (ectoderm, mesoderm and endoderm). (D) CT of adrenal liposarcoma: sporadic calcification and punctate distribution inside the tumor. (d) H&E staining of adrenal liposarcoma, magnification × 400: adipoblasts and mature adipocytes in different differentiation stages show obvious heterogeneity.