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[Functionally active tumor of the carotid body]
Ceskoslovenska Patologie
|November 1, 1976
Summary
A rare carotid body tumor caused paroxysmal hypertension by releasing noradrenaline. Autopsy confirmed the tumor, highlighting limitations of the chromaffin reaction for diagnosing such sympathetic tumors.
Area of Science:
- Endocrinology
- Oncology
- Pathology
Background:
- Paroxysmal hypertension in a 60-year-old woman suggested a sympathoadrenal neoplasm.
- Initial investigations could not localize the tumor to the adrenal glands.
Observation:
- Surgical exploration did not identify an adrenal tumor.
- Autopsy revealed a 4.5X3X3 cm carotid body tumor.
Findings:
- Histology and electron microscopy confirmed a functionally active tumor.
- Noradrenaline was isolated from the tumor tissue.
- The chromaffin reaction was negative, despite biochemical evidence of activity.
Implications:
- This case supports the classification of carotid body tumors within sympathetic paraganglia.
- The chromaffin reaction's sensitivity and reliability for detecting active tumors are questioned.
- Biogenic amine determination is crucial for diagnosing functionally active sympathetic tumors.