F-18 fluorodeoxyglucose positron emission tomography-positive benign adrenal cortical adenoma: imaging features and pathologic correlation

Clin Nucl Med. 2004 May;29(5):300-2. doi: 10.1097/01.rlu.0000124008.68606.4c.


Accurate characterization of adrenal lesions in lung cancer is essential in the staging of the disease. Computed tomography and magnetic resonance imaging as well as fluorodeoxyglucose-positron emission tomography (FDG-PET) imaging are used to differentiate adrenal metastases from benign adenomas. Although FDG-PET is highly accurate in this regard, benign adrenal cortical adenomas have been shown to accumulate FDG, although to a lesser degree. We present a patient with a history of lung cancer and FDG accumulation in a benign adenoma, probably reflecting areas of chronic inflammation also seen within the gland at pathology.

Publication types

  • Case Reports

MeSH terms

  • Adrenal Cortex / pathology
  • Adrenal Cortex Neoplasms / diagnostic imaging*
  • Adrenocortical Adenoma / diagnostic imaging*
  • Aged
  • Female
  • Fluorodeoxyglucose F18*
  • Humans
  • Radiopharmaceuticals
  • Tomography, Emission-Computed*


  • Radiopharmaceuticals
  • Fluorodeoxyglucose F18