PMC3271680_01
Abdominal CT demonstrating a large, heterogenous para-aortic mass (5x2 cm) with attenuation score of 35 HU between the celiac and superior mesenteric artery
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F1
Abdominal computed tomography revealed a large, heterogenous para-aortic mass (5 x 2 cm) between the celiac and the superior mesenteric artery with attenuation score of 35 Hounsfield unit (HU)[Figure 1].
Renal arteriography showed stenosis (> 70%) of the left renal artery
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F2
Further workup included aortic/arterial arteriography, which disclosed stenosis of the left renal artery (70%; Figure 2).
Histology of the biopsied specimen revealing characteristic organoid or zellballen nest of cells
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F3
Light microscopy of the specimen revealed characteristic organoid or zellballen nest of cells confirming the diagnosis of pheochromocytoma with no cytoplasmic inclusion, pleomorphism, cytological alterations or necrosis; the mitotic index was low [Figure 3].