IgA Nephropathy in a Patient With Metastatic Carcinoma of Unknown Primary: Findings on 18F-FDG PET/MRI

Clin Nucl Med. 2022 Apr 1;47(4):346-347. doi: 10.1097/RLU.0000000000003970.

Abstract

A 35-year-old man with mesenteric metastases of unknown primary was referred for 18F-FDG PET/MRI. The images demonstrated that FDG accumulated in the chest, abdomen, bilateral kidneys, and external genitalia. Renal and testicular metastases were suspected. The primary tumor was still not found. In addition, kidney biopsy findings indicated a diagnosis of IgA nephropathy.

Publication types

  • Case Reports

MeSH terms

  • Adult
  • Carcinoma*
  • Fluorodeoxyglucose F18
  • Glomerulonephritis, IGA* / complications
  • Glomerulonephritis, IGA* / diagnostic imaging
  • Humans
  • Magnetic Resonance Imaging
  • Male
  • Neoplasms, Unknown Primary* / diagnostic imaging
  • Radiopharmaceuticals
  • Sensitivity and Specificity

Substances

  • Radiopharmaceuticals
  • Fluorodeoxyglucose F18