Fig. 2From: Primary malignant lymphoma combined with clinically “silent” pheochromocytoma in the same adrenal glandIn the immunohistological study, tumor cells were positive for leukocyte antigen CD20(+) (b, magnification ×10) and CD45(+) (c, magnification ×2), and focus of pheochromocytoma was positive for chromogranin A(+) (a, magnification ×2) and S-100 (d, magnification ×20)Back to article page