Paragangliomas of the neck

Area of Science:

• Otolaryngology
• Neurosurgery
• Surgical Oncology

Background:

• Paragangliomas are rare neuroendocrine tumors originating from extra-adrenal chromaffin cells.
• Neck paragangliomas, particularly those involving the carotid body, present unique diagnostic and surgical challenges.
• Understanding the epidemiology and outcomes of these tumors is crucial for effective patient management.

Purpose of the Study:

• To review the clinical characteristics, diagnostic modalities, and surgical outcomes of neck paragangliomas.
• To assess the incidence of complications, specifically cranial nerve damage, following surgical resection.
• To evaluate the efficacy of various diagnostic tools in identifying these rare tumors.

Main Methods:

• Retrospective review of 28 patients diagnosed with neck paragangliomas from 1967 to 1990.
• Analysis of patient demographics, tumor location, diagnostic workup (including angiography, CT, MRI, urinary catecholamines), and surgical procedures.
• Documentation of perioperative outcomes, including complications such as cranial nerve damage and vascular events.

Main Results:

• The study identified 28 cases, with the majority (19) being carotid body tumors.
• Angiography was the most common diagnostic imaging modality used (23 cases).
• Cranial nerve damage occurred in 11 patients (39%), with no perioperative deaths or cerebrovascular accidents reported.

Conclusions:

• Surgical resection is the primary treatment for neck paragangliomas.
• While generally safe, surgical intervention carries a significant risk of cranial nerve injury.
• Multimodality diagnostic approaches are essential for comprehensive evaluation of neck paragangliomas.