Fig. 2

A 32-year-old female with a Shamblin III carotid body paragangioma (CBP) underwent incomplete resection. (a) Contrast-enhanced head and neck computed tomography scan showing the right CBP firmly attached to and surrounding the right internal carotid artery (arrow) (b) Histologic examination (H&E stain, 40×) of the partially excised tumor confirmed as a sclerosing paraganglioma which shows an abundant sclerotic stroma separating irregular nests and tiny bundles of the different-sized epithelioid to spindle cells is the most striking feature