How to localize parathyroid tumors in primary hyperparathyroidism?

Area of Science:

• Endocrinology
• Surgical Oncology

Background:

• Management of primary hyperparathyroidism (PHPT) has evolved significantly.
• Shift from traditional bilateral neck exploration to focused, minimally invasive parathyroidectomy.

Purpose of the Study:

• To highlight the impact of improved pre-operative imaging on PHPT surgical management.
• To discuss the role of various localization techniques in selecting patients for minimally invasive procedures.

Main Methods:

• Review of pre-operative imaging modalities for parathyroid tumor localization.
• Discussion of selective venous catheterization for persistent or recurrent PHPT.
• Emphasis on intra-operative parathyroid hormone (PTH) monitoring and bilateral neck exploration when needed.

Main Results:

• Improved accuracy of pre-operative studies (sestamibi, ultrasound, MRI, CT) aids in selecting patients for minimally invasive parathyroidectomy.
• Localization studies identify parathyroid tumors in most single-gland disease cases.
• Selective venous catheterization is valuable for complex or recurrent cases.

Conclusions:

• Minimally invasive parathyroidectomy is increasingly preferred for PHPT due to accurate pre-operative localization.
• Effective localization strategies ensure high biochemical cure rates.
• Bilateral exploration or intra-operative PTH monitoring remains crucial for challenging cases.