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Updated: Jun 2, 2026

Endoscopic Endonasal Trans-sphenoidal Approach: Minimally Invasive Surgery for Pituitary Adenomas
Published on: January 17, 2018
Nonneoplastic enlargement of the pituitary gland in children
Kristian Aquilina1, Frederick A Boop
1Department of Neurosurgery, Frenchay Hospital, Bristol, United Kingdom.
Insights
Pituitary gland enlargement in children is often physiological, not a tumor. Accurate diagnosis of causes like pubertal hypertrophy or hypothyroidism is crucial to avoid unnecessary endocrine tests or surgery.
Area of Science:
- Pediatric Endocrinology
- Pediatric Neurosurgery
- Medical Imaging
Background:
- Primary pituitary neoplasms are rare in children.
- Physiological pituitary enlargement is common and can mimic tumors.
- Increased MR imaging use leads to more referrals for enlarged pituitaries with nonspecific symptoms.
Observation:
- Two common causes of pituitary enlargement in children are physiological hypertrophy during puberty (more frequent in females) and secondary hyperplasia due to hypothyroidism.
- Nonspecific symptoms like headaches are often associated with enlarged pituitaries.
Findings:
- Distinguishing physiological enlargement from neoplastic conditions is essential.
- Early and accurate diagnosis can prevent extensive endocrine workups and inappropriate surgical interventions.
Implications:
- Highlights the need for careful evaluation of pituitary enlargement in pediatric patients.
- Emphasizes non-invasive diagnostic approaches over immediate surgical or extensive endocrine investigation.
- Aims to reduce misdiagnosis and unnecessary treatments for children with pituitary gland changes.
Abstract:
Primary neoplasms of the pituitary gland are uncommon in children. Physiological enlargement of the gland, however, is universal and can sometimes be confused with a tumor. Due to widespread availability of MR imaging, the number of children referred to pediatric neurosurgeons with an enlarged pituitary associated with nonspecific symptoms, most commonly headache, is increasing. In this review, the authors illustrate two common causes of pituitary enlargement in children, namely physiological hypertrophy of puberty, more commonly seen in females, and secondary hyperplasia caused by hypothyroidism. The importance of early and accurate diagnosis, without recourse to extensive endocrine investigations or inappropriate surgery, is underscored.
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