Fig. 6From: Giant left pheochromocytoma with vascular anomalies and pelvic horseshoe kidney: a case report(A:) 10X, H&E. Tumor cells growing in nests called zell-ballen nests. (B:) 10X, H&E. Lympho-vascular invasion. (C:) 10X, Synaptophysin stain, positive. (D:) 10X, SDHB stain, positiveBack to article page