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Figure 2: Histopathology of the paraganglioma. (a) H and E stain showing well-defined nests of cuboidal cells with abundant cytoplasm separated by highly vascularized fibrous septa. (b) Immunostaining shows strong positivity to synaptophysin immunostain in the tumor cells

Figure 2: Histopathology of the paraganglioma. (a) H and E stain showing well-defined nests of cuboidal cells with abundant cytoplasm separated by highly vascularized fibrous septa. (b) Immunostaining shows strong positivity to synaptophysin immunostain in the tumor cells