Catecholamine-secreting paragangliomas at the skull base

Area of Science:

• Neuro-oncology
• Endocrinology
• Head and Neck Surgery

Background:

• Paragangliomas are neoplasms at the skull base, accounting for 15% of such tumors.
• Typically, these tumors do not cause symptoms due to minimal biogenic substance secretion.
• However, significant catecholamine secretion can lead to symptoms resembling pheochromocytoma.

Purpose of the Study:

• To clarify the nomenclature of paragangliomas.
• To present the clinical work-up, surgical treatment, and follow-up of patients with catecholamine-secreting paragangliomas.
• To discuss the management of these rare neuroendocrine tumors.

Main Methods:

• Review of paraganglioma nomenclature.
• Case series of five patients with catecholamine-secreting paragangliomas.
• Analysis of clinical presentation, diagnostic work-up, surgical interventions, and patient follow-up.

Main Results:

• Five cases of catecholamine-secreting paragangliomas were identified: three in the temporal bone, one in the infratemporal fossa, and one in the nasopharynx.
• Patients presented with symptoms potentially mimicking pheochromocytoma due to catecholamine excess.
• The study discusses the diagnostic and therapeutic challenges associated with these tumors.

Conclusions:

• Catecholamine-secreting paragangliomas are rare but clinically significant neoplasms.
• Accurate diagnosis and tailored surgical management are crucial for patient outcomes.
• Further research into the specific mechanisms and optimal treatment strategies is warranted.