Key result
Radiological evaluation using angiography and computed tomography can differentiate paragangliomas from other head and neck tumors by demonstrating their profuse vascularity and position.
Angiography and computed tomography are effective imaging modalities for diagnosing, classifying, and managing head and neck paragangliomas.
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Supports angiography and CT for differentiating head and neck paragangliomas; leaves open prospective validation in modern cohorts.
Paragangliomas can be differentiated angiographically from most other tumors in the head and neck by their profuse vascularity; specific classification is based on their position and displacement of adjacent vessels. Subtraction usually aids in diagnosis. In most cases, bilateral carotid angiography should be performed, since the ipsilateral carotid artery may have to be ligated and an asymptomatic contralateral tumor may also be found during surgery. Studies of multiple vessels will often show an additional blood supply. Computed tomography can demonstrate the tumor's vascular nature and position and is valuable in follow-up after radiation therapy.
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Duncan et al. (1979) conducted a review in Paragangliomas of the head and neck. Radiological evaluation (angiography and computed tomography) was evaluated. Radiological evaluation using angiography and computed tomography can differentiate paragangliomas from other head and neck tumors by demonstrating their profuse vascularity and position.
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