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Sonography in primary hyperparathyroidism: review with emphasis on scanning technique
Scott B Reeder1, Terry S Desser, Ronald J Weigel
1Department of Radiology, Stanford University Medical Center, California 94304, USA.
Summary
Sonography accurately identifies parathyroid adenomas in primary hyperparathyroidism. Advanced techniques improve localization of smaller adenomas, aiding preoperative planning.
Area of Science:
- Radiology
- Endocrinology
- Surgical Oncology
Background:
- Primary hyperparathyroidism (PHPT) is often caused by parathyroid adenomas.
- Accurate preoperative localization of parathyroid adenomas is crucial for successful surgical management.
Purpose of the Study:
- To review sonographic features and scanning techniques for preoperative localization of parathyroid adenomas in PHPT patients.
Main Methods:
- Retrospective review of sonographic findings in 58 patients with pathologically proven parathyroid adenomas.
- Systematic scanning approach using real-time gray scale, color and power Doppler, and graded compression imaging.
Main Results:
- Sonography correctly identified 93% (54/58) of parathyroid adenomas.
- Gray scale imaging alone identified all large adenomas (≥1 cm).
- Color/power Doppler and graded compression imaging were essential for localizing smaller adenomas (<1 cm).
Conclusions:
- A systematic sonographic approach, combined with knowledge of typical locations and imaging features, enables accurate preoperative localization of parathyroid adenomas.
- Advanced sonographic techniques are vital for identifying smaller parathyroid adenomas.