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Updated: Jul 14, 2026

Endoscopic Endonasal Trans-sphenoidal Approach: Minimally Invasive Surgery for Pituitary Adenomas
Published on: January 17, 2018
An interesting case of a pituitary adenoma apoplexy mimicking an acute meningitis. Case report
S Chibbaro1, L Benvenuti, S Carnesecchi
1Division of Neurosurgery, Spedali Riuniti, Livorno, Italy. schibbaro@hotmail.com
Abstract:
Apoplexy of a pituitary adenoma is a rare and under-diagnosed clinical occurrence. It results from either infarction or haemorrhage into an adenoma of the pituitary gland. Its clinical presentation more often includes rapid development of impaired consciousness, severe headache, visual disturbance and variable association of oculomotor nerve palsy. Meningeal irritation signs are considered very rare and usually not reported as presenting symptoms. A 33-year-old male suffered a pituitary macroadenoma apoplexy, clinically indistinguishable from an infectious meningitis at presentation. Three days after surgery, the patient developed a left ophthalmoplegia due to 3(rd) nerve palsy, which fully resolved within 2 months. A right pterional craniotomy was performed during which complete tumour removal was achieved. In conclusion the authors believe that, despite many reports in the literature, encouraging conservative management in pituitary apoplexy by administering intravenous steroids, surgery should be undertaken in order to avoid eventual visual field defects, relieve pituitary gland compression and prevent a possible recurrent apoplectic episode or tumor re-growth.
Insights
Pituitary apoplexy, a rare condition involving bleeding or infarction of a pituitary adenoma, can mimic meningitis. Surgical intervention is recommended to prevent vision loss and recurrence.
Area of Science:
- Neuroendocrinology
- Neurosurgery
Background:
- Pituitary apoplexy is a rare clinical event resulting from infarction or hemorrhage within a pituitary adenoma.
- It typically presents with sudden headache, visual impairment, and oculomotor nerve palsy, but meningeal signs are uncommon.
Observation:
- A 33-year-old male presented with pituitary macroadenoma apoplexy, initially mimicking infectious meningitis.
- The patient developed temporary left third nerve palsy post-surgery, which resolved within two months.
Findings:
- Surgical management via right pterional craniotomy achieved complete tumor removal.
- The case highlights the diagnostic challenge of pituitary apoplexy, especially when presenting with meningeal signs.
Implications:
- Surgical intervention for pituitary apoplexy is advocated over conservative management to prevent visual deficits and recurrence.
- Early surgical decompression is crucial for preserving pituitary function and preventing long-term complications.
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