[Table/Fig-3]:

a-Gross photograph of pheochromocytoma with dichromate reaction. Photomicrographs of pheochromocytoma showing: b - capsular invasion (H and e; x100), c - chromogranin immunoreactivity (x100), d- synaptophysin immunoreactivity x(100), e- grade 2 S100 immunoreactivity (x400), f- Ki67 labeling index (8%) (x400).

RP = Retroperitoneal; Gr = grade; B = Benign; M = malignant; HG =Hyaline globules.