case_images: PMC4077553_01
case_images: Pheochromocytoma imaging features. Pheochromocytoma mass (arrows) with heterogeneous appearance in computed tomography (A), revealing hypointense signal on T1-weighted (B) and hyperintense signal on T2-weighted (C) sequences of magnetic resonance imaging, and high uptake on 123I-mIBG scintigraphy (D,E).
case_images: 1755-7682-7-30-1.jpg
case_images: PMC4077553_01_1755-7682-7-30-1.jpg
case_images: F1
case_images: MRI findings were suggestive of pheochromocytoma and the mass showed high uptake on 123I-mIBG scintigraphy (Figure 1).
case_images: Histologic analysis. Nested arrangement of cells (Zellballen) with large cytoplasm and prominent nucleolus (HE, 400x) (A), and immunohistochemical staining for synaptophysin (400x) (B), confirming the diagnosis of pheochromocytoma.
case_images: 1755-7682-7-30-2.jpg
case_images: PMC4077553_01_1755-7682-7-30-2.jpg
case_images: F2
case_images: The mass was excised and histological analysis confirmed the diagnosis of pheochromocytoma (Figure 2).