Thyroid diseases in patients with acromegaly.

Area of Science:

• Endocrinology
• Oncology

Background:

• Acromegaly, a condition caused by excess growth hormone (GH), is frequently associated with thyroid gland pathologies.
• Prolonged stimulation by GH and insulin-like growth factor 1 (IGF-1) can lead to thyroid dysfunction, increased thyroid mass, and goiter development.
• Non-toxic multinodular goiter is the most common thyroid finding in acromegaly patients, with increased nodule prevalence during active disease.

Purpose of the Study:

• To investigate the relationship between thyroid volume and disease activity in acromegaly.
• To highlight the importance of comprehensive thyroid evaluation in acromegaly patients.
• To emphasize the need for early diagnosis and exclusion of thyroid cancer in acromegaly.

Main Methods:

• Review of existing literature on acromegaly and thyroid pathologies.
• Analysis of hormonal levels (GH, IGF-1) and imaging studies in acromegaly patients.
• Correlation of thyroid size and nodularity with disease duration and activity.

Main Results:

• Acromegaly is linked to various thyroid disorders, most commonly non-toxic multinodular goiter.
• Thyroid nodules are more frequent in active acromegaly.
• Treatment with somatostatin analogues may reduce thyroid size, though the relationship between thyroid volume, IGF-1 levels, and disease duration requires further clarification.

Conclusions:

• Acromegaly necessitates thorough hormonal and imaging assessment of the thyroid at diagnosis and during follow-up.
• While the link between acromegaly and thyroid cancer remains debated, early diagnosis and cancer screening are vital.
• Regular monitoring of thyroid function and structure is essential for managing acromegaly patients.