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Related Experiment Videos

Gamma probe-guided lymph node dissection ('gamma picking') in differentiated thyroid carcinoma.

Seza A Gulec1, Michelle Eckert, Eugene A Woltering

  • 1John Wayne Cancer Institute, Santa Monica, California 90404, USA. gulecs@jwci.org

Clinical Nuclear Medicine
|February 28, 2003
PubMed
Summary

Gamma probe-guided surgery ("gamma picking") effectively detects small, undetectable lymph node metastases in well-differentiated thyroid cancer, improving surgical accuracy for papillary thyroid cancer patients.

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Area of Science:

  • Oncology
  • Nuclear Medicine
  • Surgical Pathology

Background:

  • Management of regional lymph node metastases in well-differentiated thyroid carcinoma remains controversial.
  • Current
  • berry picking
  • technique often misses micrometastatic disease.

Observation:

  • A novel gamma probe-guided lymph node dissection (
  • gamma picking
  • ) technique was employed.
  • A 52-year-old man with papillary thyroid cancer received I-123 before total thyroidectomy.
  • A gamma probe identified four distinct foci of radioactivity in the neck.

Findings:

  • Histopathology confirmed bilateral, multifocal papillary thyroid carcinoma.

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  • Two of the four identified foci were small lymph nodes (less than 0.5 cm) with metastatic disease.
  • The other two foci were thyroid remnants.

    • Implications:

    • Gamma picking can identify visually undetectable micrometastatic lymph nodes.
    • This technique may improve the detection rate of nodal involvement in thyroid cancer surgery.
    • Enhanced surgical precision for thyroid cancer staging and treatment planning.