To understand the cross-sectional imaging features of head and neck paragangliomas. To differentiate the CT and MRI features of paragangliomas.

Paragangliomas are neoplasms arising from the paraganglia(1,2) usually seen in the head and neck, chest and abdomen; commonly seen in specific locations: middle ear, jugular foramen, carotid body, aorto-pulmonary region, posterior mediastinum and Zuckerkandl's body. Paragangliomas arising in the head and neck are quite rare and represent less than 1 % of all paragangliomas. Clinical presentation: The lesions in the middle ear cavity usually present with symptoms such as: Pulsatile tinnitus Conductive hearing loss Cranial nerve palsies The lesions in the neck usually present as...

This case series includes 10 patients with head and neck paragangliomas, out of which 4 underwent MRI and 6 underwent CT. MRI protocol included T1, T2, FLAIR, DWI, SWI and post contrast T1 weighted sequences. CT protocol included thin section spiral CT (single slice and multidetector 128 slice) of the head and neck region with post contrast image acquisition for all cases expect 2 cases which were plain studies. High resolution CT images were acquired for 2 patients. On MRI, paragangliomas showed variable signal on...

Majority of the head and neck paragangliomas are seen in predictable regions and show classical imaging appearances on CT and MRI which help in making an accurate diagnosis.

Dr. Vendoti Nitheesha Reddy Final year Resident Department of Radio-diagnosis and Imaging Ramaiah Medical College and Hospitals Bangalore - 560054. Email: [email protected] Dr. Pannag Desai Senior Resident Department of Radio-diagnosis and Imaging Ramaiah Medical College and Hospitals Bangalore - 560054. Email: [email protected] Dr. Ashok kumar A. Professor and Head of Department Department of Radio-diagnosis and Imaging Ramaiah Medical College and Hospitals Bangalore - 560054. Email: [email protected]

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