Suprasellar choristoma

Area of Science:

• Endocrinology
• Neurosurgery
• Pathology

Background:

• Choristomas are rare congenital tumors composed of histologically normal tissue found in an abnormal location.
• Pituitary choristomas, particularly those in the suprasellar or neurohypophyseal region, are exceptionally uncommon.

Observation:

• A patient presented with symptoms suggestive of a chromophobe pituitary adenoma.
• Initial clinical presentation and radiological findings were consistent with a pituitary adenoma.
• Histological examination was crucial for the definitive diagnosis of a posterior pituitary lobe choristoma.

Findings:

• The patient underwent surgery with a satisfactory post-operative course despite advanced age.
• Post-operatively, endocrine and visual function disturbances remained largely unchanged.
• This case represents the twentieth reported instance of suprasellar or neurohypophyseal choristoma in the literature.

Implications:

• This case underscores the importance of histological examination for diagnosing rare pituitary tumors.
• Understanding the clinical presentation, radiology, and treatment of pituitary choristomas is vital for accurate diagnosis and management.
• Further discussion on the histiogenesis and nature of these rare tumors is warranted to improve clinical outcomes.