case_images: PMC5717474_01
case_images: Carotid angiography image revealing a giant highly vascular, left-sided carotid body tumor.
case_images: f1000research-6-13784-g0000.jpg
case_images: PMC5717474_01_f1000research-6-13784-g0000.jpg
case_images: f1
case_images: The patient then underwent a CT angiography, which revealed a well-defined large (> 8 cm) heterogeneous and hyperdense soft tissue lesion; showing intense arterial enhancement at the level of carotid bifurcation ( Figure 1).
case_images: Angiographic image revealing encasement of the common carotid as well as both of its main branches by the tumor.
case_images: f1000research-6-13784-g0001.jpg
case_images: PMC5717474_01_f1000research-6-13784-g0001.jpg
case_images: f2
case_images: It was causing significant compression and displacement of a long segment of the internal carotid artery (ICA) and external carotid artery (ECA), encasing a broad area of the ICA and ECA ( Shamblin Grade 3) ( Figure 2).
case_images: Tumor having vascular supply from both the external and internal carotid arteries.
case_images: f1000research-6-13784-g0002.jpg
case_images: PMC5717474_01_f1000research-6-13784-g0002.jpg
case_images: f3
case_images: The lesion was getting vascular supply from both the ICA and ECA branches ( Figure 3).
case_images: Surgical steps carried out during caudocranial subadventitial dissection.
case_images: f1000research-6-13784-g0003.jpg
case_images: PMC5717474_01_f1000research-6-13784-g0003.jpg
case_images: f4
case_images: After ensuring temporary carotid control with vascular loops, sub-adventitial dissection of the lesion was carried out starting from the common carotid caudally and then progressing cranially towards the bifurcation and its branches ( Figure 4).
case_images: Cut specimen of the excised tumor, along with the characteristic Zellballen pattern in the histology.
case_images: f1000research-6-13784-g0004.jpg
case_images: PMC5717474_01_f1000research-6-13784-g0004.jpg
case_images: f5
case_images: The histology from the lesion revealed a characteristic Zellballen pattern, highly suggestive of a Paraganglioma ( Figure 5).