Paragangliomas (glomus tumors) comprise 15% of all neoplasms at the skull base. Despite extensive growth, these tumors usually do not secrete active biogenic substances into the circulation in sufficient quantities to produce symptoms. When they do secrete large amounts of catecholamines, they will cause symptoms that mimic a pheochromocytoma. The still confusing nomenclature of paragangliomas is reviewed, and the clinical work-up, surgical treatment, and follow-up of five patients with catecholamine-secreting paragangliomas of temporal bone (3), infratemporal fossa (1), and nasopharynx (1) are presented and discussed.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1656505PMC
http://dx.doi.org/10.1055/s-2008-1058911DOI Listing

Publication Analysis

Top Keywords

catecholamine-secreting paragangliomas
8
skull base
8
paragangliomas skull
4
base paragangliomas
4
paragangliomas glomus
4
glomus tumors
4
tumors comprise
4
comprise 15%
4
15% neoplasms
4
neoplasms skull
4

Similar Publications

Extra-adrenal pheochromocytomas are rare neuroendocrine tumors originating outside the adrenal glands and can pose significant diagnostic challenges due to their variable presentations. This report highlights a case of an extra-adrenal pheochromocytoma masquerading as a pancreatic head malignancy. We underscore the importance of considering extra-adrenal pheochromocytoma in the differential diagnosis of pancreatic masses, particularly when biochemical or clinical features suggest catecholamine excess.

View Article and Find Full Text PDF

Pheochromocytoma is a catecholamine-secreting tumor that arises from the medullary chromaffin cells but can rarely be extra-adrenal in origin. We present a case of a 16-year-old female patient with uncontrolled hypertension, despite being on lisinopril and metoprolol, and associated left-sided chest pain, recurrent headaches, and an unintentional weight loss of 10 pounds in one month. Laboratory work-up showed a markedly elevated plasma metanephrine level of 4463.

View Article and Find Full Text PDF

Phaeochromocytomas are rare catecholamine-secreting tumours, usually benign, originating from chromaffin cells of the adrenal glands. Their typical presentation includes the triad of headaches, sweating and tachycardia due to excessive catecholamine release. However, many patients do not exhibit all three symptoms, making diagnosis challenging.

View Article and Find Full Text PDF

Background: Pheochromocytomas and paragangliomas are rare chromaffin cell-derived tumors characterized by catecholamine-secreting activity. Pheochromocytomas account for 1.7% of pediatric hypertension cases.

View Article and Find Full Text PDF

Introduction: Pheochromocytomas are catecholamine-secreting tumors arising from chromaffin cells of the adrenal gland. Surgery is the only curative treatment with a high biochemical cure rate, low mortality and high risk of perioperative complications.

Objectives: To study the demographic characteristics of patients with pheochromocytoma and to identify the risk factors for perioperative complications, treatment outcomes, and aggressive behavior of the tumor.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!