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Benign pure androgen-secreting adrenal tumor misdiagnosed as adrenocortical carcinoma on 18F-FDG PET-CT: a rare case report

  • 期刊论文

  • 发表日期：

    2024年9月30日

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  • Zhan Wang,
  • Jiayang Chen,
  • Xiaohua Shi,
  • Yi Liu,
  • Wenda Wang,
  • Guoyang Zheng,
  • Yang Zhao,
  • Yanan Li,
  • Xu Wang,
  • Dongxu Qiu,
  • Yushi Zhang

摘要

Background

Adult pure androgen-secreting adrenal tumors (PASATs) are rarely reported and the malignancy of such tumor are difficult to confirm before surgery. Here we report a PASAT demonstrating extremely 18F-FDG uptake turned out to benign tumor by postoperative pathology examination.

Case presentation

A 19-year-old adolescent found a tumor measuring 7.2 cm located in the right adrenal region on enhanced CT during the routine physical examination. Signs of virilization and elevated testosterone and dehydroepiandrosterone (DHEA) were verified during preoperative examination. 18F-FDG PET/CT revealed the tumor had an extremely high 18F-FDG uptake with a SUVmax reaching 42.7, which turned out to be oncocytic adrenocortical adenoma by pathological examination.

Conclusions

18F-FDG PET/CT may be limited in assessing the malignancy of PASAT.