Noninvasive Verification of a Very Small Intraocular Prostate Carcinoma Metastasis by 68Ga-PSMA-11 PET/CT

Clin Nucl Med. 2023 Oct 1;48(10):915-916. doi: 10.1097/RLU.0000000000004790. Epub 2023 Aug 30.

Abstract

A male patient underwent 68Ga-PSMA-11 PET/CT for the evaluation of a suspected intraocular metastasis in the right eye. Although the choroidal thickening was very small (4 × 2 mm), and ophthalmoscopy as well as MRI were inconclusive, PET/CT imaging showed distinct PSMA expression in the suspected lesion, confirming prostate cancer metastasis. The ability of dedicated PSMA ligand PET/CT imaging to detect small metastases, even with 68Ga-labeled ligands, has been demonstrated. Therefore, the use of further invasive diagnostic procedures could be avoided. Thus, the possibility of detecting intraocular metastases of prostate cancer should be considered in routine PET/CT imaging.

MeSH terms

  • Carcinoma
  • Humans
  • Male
  • Neoplasm Metastasis* / diagnostic imaging
  • Positron Emission Tomography Computed Tomography
  • Prostate
  • Prostatic Neoplasms* / diagnostic imaging

Substances

  • gallium 68 PSMA-11