Axillary lymph node metastasis of papillary thyroid carcinoma detected by FDG PET/CT in a thyroglobulin-positive patient with negative whole-body 131I scan

Clin Nucl Med. 2012 Nov;37(11):1120-2. doi: 10.1097/RLU.0b013e318266cce9.

Abstract

Axillary metastasis is not a common finding in papillary carcinoma. 18F-FDG can detect foci of metastasis in patients with negative 131I scan. We report a case of a 64-year-old man who had undergone thyroidectomy and 131I ablation due to classic type of papillary carcinoma 14 years ago. Follow-up examination revealed high serum thyroglobulin and negative whole body 131I scan. 18F-FDG PET/CT showed focally increased uptake in right axillary as well as supraclavicular and bilateral cervical lymph nodes. Histopathological examination of the surgically removed lymph nodes confirmed the metastasis of papillary thyroid carcinoma.

Publication types

  • Case Reports

MeSH terms

  • Carcinoma / blood
  • Carcinoma / diagnostic imaging
  • Carcinoma / pathology*
  • Carcinoma, Papillary
  • Fluorodeoxyglucose F18*
  • Humans
  • Iodine Radioisotopes
  • Lymph Nodes / diagnostic imaging*
  • Lymphatic Metastasis / diagnostic imaging*
  • Male
  • Middle Aged
  • Multimodal Imaging*
  • Positron-Emission Tomography*
  • Thyroglobulin / blood*
  • Thyroid Cancer, Papillary
  • Thyroid Neoplasms / blood
  • Thyroid Neoplasms / diagnostic imaging
  • Thyroid Neoplasms / pathology*
  • Thyroidectomy
  • Tomography, X-Ray Computed*
  • Whole Body Imaging*

Substances

  • Iodine Radioisotopes
  • Fluorodeoxyglucose F18
  • Thyroglobulin