PMC2964848_01
Computed tomography angiogram showing a tumor situated in front of the left kidney. The left kidney and adrenals are normal
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Both ultrasonography and computed tomography (CT) revealed a 12 cm x 10 cm retroperitoneal soft-tissue tumor situated anteromedial to the lower part of the left kidney [Figure 1].
(a) A cluster of tumor cells showing indistinct cell borders, abundant granular eosinophilic cytoplasm and anisokaryosis (H and E, x400). (b) Occasional binucleate and spindle cells are seen (PAP, x400)
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Occasional binucleate cells were seen [Figure 2a and 2b].
(a) Cell block showing classical features of pheochromocytoma (H and E, x400). (b) Tissue section shows tumor cells arranged in the characteristic Zellballen pattern (H and E, x400)
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CT findings and FNA features, a differential diagnosis of EAP was strongly thought of. Cell block showed features consistent with pheochromocytoma [Figure 3a]. The histology was compatible with pheochromocytoma [Figure 3b].