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The perils of a sneeze
1Department of Ophthalmology, Montreal General Hospital, McGill University, Quebec, Canada.
Summary
A rare case of pituitary adenoma initially presented as a spontaneous pneumocephalus, causing severe eye pain and vision loss. This finding highlights the importance of considering pituitary tumors in unusual neurological presentations.
Area of Science:
- Neuro-oncology
- Endocrinology
- Ophthalmology
Background:
- Pituitary adenomas are common intracranial tumors, typically presenting with visual disturbances or hormonal imbalances.
- Spontaneous pneumocephalus, the presence of air within the cranial cavity, is an uncommon finding, often associated with trauma or surgical complications.
Observation:
- A 51-year-old woman presented with acute supraorbital pain and blurred vision.
- Ophthalmological examination revealed decreased visual acuity and a relative afferent pupillary defect in the left eye.
- Neuroimaging demonstrated a large intra-, supra-, and parasellar mass eroding into the sphenoid and maxillary sinuses, with secondary pneumocephalus.
Findings:
- Pathological examination confirmed the mass to be a null cell pituitary adenoma.
- This case represents a rare instance where spontaneous pneumocephalus was the initial manifestation of a pituitary adenoma.
Implications:
- This case underscores the diverse and sometimes atypical presentations of pituitary adenomas.
- It emphasizes the need for comprehensive diagnostic evaluation, including advanced imaging, for patients with unexplained neurological and visual symptoms.
- The findings contribute to the limited literature on pneumocephalus as an initial sign of pituitary tumors, aiding in differential diagnosis.