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[Zollinger-Ellison syndrome. Report of a case]
Revista De Gastroenterologia De Mexico
|October 1, 1981
Summary
This case report details a patient with Zollinger-Ellison (Z-E) syndrome whose pancreatic tumor metastasized to the liver. Microscopic analysis confirmed the neoplasm originated from APUD cells.
Area of Science:
- Endocrinology
- Oncology
- Gastroenterology
Background:
- Zollinger-Ellison (Z-E) syndrome is characterized by gastrin-producing tumors leading to severe acid hypersecretion.
- This report focuses on a rare presentation involving pancreatic neuroendocrine tumors with metastasis.
Observation:
- A 61-year-old male presented with gastrointestinal bleeding, abdominal pain, elevated gastrin, and hypoglycemia, indicative of Z-E syndrome.
- Surgical exploration revealed a non-resectable pancreatic tail tumor with liver metastasis.
Findings:
- Histopathological examination of liver metastasis showed poorly differentiated tissue.
- Electron microscopy revealed features resembling pancreatic islets with cytoplasmic granules, suggesting an APUD (amine precursor uptake and decarboxylation) cell origin.
Implications:
- This case highlights the importance of thorough histopathological and ultrastructural analysis in diagnosing metastatic neuroendocrine tumors.
- Understanding the APUD cell origin is crucial for accurate diagnosis and potential therapeutic strategies in similar complex cases.