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[Functioning paraganglioma]

M Boneschi1, M Erba, G F Giuffrida

  • 1Istituto di Chirurgia Generale e Cardiovascolare, Università degli Studi di Milano.

Minerva Chirurgica
|December 1, 1993
PubMed
Summary
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Pheochromocytomas and paragangliomas are rare neural crest tumors causing catecholamine excess. This study reviews 80 surgically treated patients, detailing tumor characteristics and outcomes.

Area of Science:

  • Endocrinology
  • Surgical Oncology
  • Neuroscience

Background:

  • Pheochromocytomas and functioning paragangliomas originate from neural crest cells.
  • These rare tumors cause the pheochromocytoma syndrome, characterized by hypertension, headache, and sweating due to catecholamine production.
  • While 80% of cases involve adrenal pheochromocytomas, 20% arise from extra-adrenal paragangliomas.

Observation:

  • The study analyzed 80 patients with adrenal medulla and paraganglion system neoplasms treated surgically over 25 years.
  • Multicentric tumors (10%) and associations with Multiple Endocrine Neoplasms (MEN) were noted, particularly in familial cases.
  • Eight patients (10%) had functioning extra-adrenal paragangliomas, mostly solitary (7/8), with one case of double asymptomatic tumors.

Findings:

Related Experiment Videos

  • Extra-adrenal paragangliomas, though less common, present with classic pheochromocytoma syndrome.
  • The diffused nature of the paraganglion system contributes to multicentricity and familial associations.
  • Surgical treatment was performed on a cohort with diverse tumor locations and presentations.

Implications:

  • Careful patient follow-up is crucial for detecting late-developing or metachronous neoplasms.
  • Understanding the embryologic origin aids in explaining tumor distribution and associations.
  • This experience highlights the importance of considering extra-adrenal sources in pheochromocytoma diagnosis and management.