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Pheocromocytoma and gastrointestinal bleeding
E Vázquez-Quintana1, R Vargas, M Pérez
1Department of Surgery, University of Puerto Rico School of Medicine, San Juan, Puerto Rico 00936-5067.
The American Surgeon
|November 1, 1995
Summary
Extra-adrenal pheochromocytoma can cause gastrointestinal bleeding, a rare complication. This case highlights a large, unresectable tumor presenting with duodenal varices and bleeding, emphasizing the need for awareness.
Area of Science:
- Endocrinology
- Gastroenterology
- Oncology
Background:
- Pheochromocytomas are rare neuroendocrine tumors typically arising in the adrenal medulla.
- Extra-adrenal pheochromocytomas can occur along the sympathetic chain, presenting with diverse clinical manifestations.
- Gastrointestinal bleeding is an uncommon complication of pheochromocytoma.
Observation:
- A 46-year-old male presented with an abdominal mass and gastrointestinal bleeding without a history of hypertension.
- Imaging revealed a large, calcified right paravertebral mass, confirmed as an unresectable pheochromocytoma.
- Endoscopy identified duodenal varices, suggesting a potential link to the tumor's vascular involvement.
Findings:
- Biopsy confirmed the mass as a pheochromocytoma.
- The patient experienced postoperative pulmonary edema and recurrent gastrointestinal bleeding and heart failure.
- Despite unresectability, the patient survived for 5 years with medical management.
Implications:
- This case underscores the rare but serious gastrointestinal complications associated with pheochromocytomas.
- It highlights the importance of considering pheochromocytoma in patients with unexplained abdominal masses and gastrointestinal bleeding.
- Further research into the mechanisms and management of gastrointestinal complications of pheochromocytoma is warranted.