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Pituitary apoplexy caused by endocrine stimulation tests: a case report
Surgical Neurology
|July 1, 1994
Summary
Pituitary apoplexy, a rare complication, can occur during endocrine stimulation tests in patients with giant pituitary adenomas. Emergency treatment and surgery improved the patient's condition, highlighting the need for caution during testing.
Area of Science:
- Endocrinology
- Neurosurgery
- Pathology
Background:
- Giant pituitary adenomas pose significant clinical challenges.
- Pituitary apoplexy is a rare but serious complication characterized by sudden hemorrhage or infarction within the pituitary gland.
- Endocrine stimulation tests are crucial for assessing pituitary function but may carry inherent risks.
Observation:
- A 60-year-old woman with a giant pituitary adenoma experienced symptomatic pituitary apoplexy during endocrine stimulation testing (triple bolus test).
- Hemorrhage occurred within and around the pituitary tumor.
- The patient presented with altered consciousness and hemiparesis.
Findings:
- Emergency surgical decompression led to rapid improvement in the patient's neurological status.
- Histological examination revealed a chromophobe adenoma of the papillary type with diffuse hemorrhage.
- Subtotal tumor removal was achieved in a subsequent operation.
Implications:
- Routine anterior pituitary stimulation tests may precipitate pituitary apoplexy in patients with large pituitary adenomas.
- Clinicians should exercise caution when planning and performing these tests in at-risk individuals.
- Understanding the potential mechanisms of bleeding is crucial for risk mitigation and patient safety.