Nonchromaffin paragangliomas1 as a group are histologically like the carotid-body tumors and are in essence blood-vessel tumors with interspersed epithelioid cells. I shall limit my remarks to those tumors which originate within the middle ear and the dome of the jugular bulb and I shall attempt to segregate them by their specific sites of origin to tympanic tumors of the middle ear2 and glomus jugulare tumors arising from the jugular bulb. Published case reports are limited to approximately 100 cases. I feel that some tumors of this classification have been missed for lack of specific pathological identification. The objective of this study of a few cases in the Vancouver area is an attempt to make a special effort to emphasize early symptoms and early diagnosis.
Tumors originating from the nonchromaffin paraganglioma vary according to their particular point of origin, such as the tympanic plexus or the adventitia of the jugular
TAYLOR RW. Nonchromaffin Paraganglioma, Tympanic and Jugulare. AMA Arch Otolaryngol. 1958;68(5):562–566. doi:10.1001/archotol.1958.00730020584004
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