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Related Experiment Videos

Giant phaeochromocytoma: case report

L Basso1, L Lepre, M Melillo

  • 11st Department of Surgery, University of Rome, La Sapienza, Italy.

Irish Journal of Medical Science
|January 1, 1996
PubMed
Summary

A rare case of a giant pheochromocytoma, a rare adrenal tumor, was reported in a 47-year-old man. This asymptomatic tumor weighed 4050g and was diagnosed as malignant pheochromocytoma.

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Area of Science:

  • Endocrinology
  • Surgical Oncology
  • Pathology

Background:

  • Pheochromocytoma is a rare neuroendocrine tumor arising from chromaffin cells, typically in the adrenal medulla.
  • Giant pheochromocytomas are exceptionally rare, defined as tumors exceeding 10 cm in diameter or weighing over 500g.
  • Asymptomatic presentation of pheochromocytoma is uncommon, making diagnosis challenging.

Observation:

  • A 47-year-old male presented with an asymptomatic giant retroperitoneal mass.
  • Preoperative imaging included ultrasound, X-ray, CT, and MRI.
  • Surgical resection was performed via a thoracoabdominal incision, involving diaphragm section.

Findings:

  • A 4050g tumor measuring 29 x 21 x 12 cm was resected en bloc with the left adrenal gland.
  • Macroscopic examination revealed areas of necrosis.
  • Microscopic analysis showed monomorphic cells and numerous mitotic figures, consistent with malignant pheochromocytoma.

Implications:

  • This case highlights the possibility of massive, asymptomatic pheochromocytomas.
  • Complete surgical resection is crucial for management.
  • The pathological features suggest a high likelihood of malignancy and potential for metastasis.

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