Surveillance Imaging Strategies for Pituitary Adenomas: When, How Frequent, and When to Stop

Area of Science:

• Endocrinology
• Neuroradiology
• Oncology

Background:

• Pituitary adenomas (PAs) are frequently discovered incidentally or due to clinical symptoms.
• Current surveillance imaging strategies lack evidence-based consensus recommendations.
• Magnetic resonance imaging (MRI) is the primary modality for PA assessment and follow-up.

Purpose of the Study:

• To provide a practical framework for pituitary adenoma surveillance imaging.
• To guide decisions on the frequency and duration of imaging for PAs.
• To establish individualized imaging strategies based on clinical and pathological factors.

Main Methods:

• A comprehensive literature review was conducted.
• Recommendations are informed by clinical experience and existing literature.
• Synthesis of current practices and influencing factors for surveillance imaging.

Main Results:

• MRI is crucial for PA assessment, treatment planning, and follow-up.
• Imaging is utilized in pre- and post-operative phases, and for monitoring unoperated PAs.
• Key factors influencing surveillance include age, adenoma size, extension, functional status, and patient-specific considerations.

Conclusions:

• Individualized surveillance imaging strategies are essential for pituitary adenomas.
• Decisions should integrate clinical presentation, patient history, and adenoma imaging and histopathologic characteristics.
• A practical approach to pituitary adenoma imaging surveillance is proposed.