Unusual Sole Extramedullary Diffuse Kidney Involvement in Multiple Myeloma Initial Workup Using 2-[ 18 F]FDG-PET/CT Imaging.
case_report · Level V
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- Record sourced from PubMed, PMID 40577004.
- Also identified by DOI 10.1097/RLU.0000000000005847.
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Abstract
2-[ 18 F]fluorodeoxyglucose-positron emission tomography with computed tomography (2-[ 18 F]FDG-PET/CT) in multiple myeloma (MM) allows the detection of extramedullary disease (EMD), which is scarce at initial workup. We report here for the first time uncommon 2-[ 18 F]FDG-PET/CT imaging results of a 63-year-old woman with newly diagnosed MM and sole diffuse kidney EMD revealed by a significantly increased renal volume and intense/diffuse bilateral renal cortical uptake without visualization of the urinary excretory cavities then confirmed by kidney biopsy. This case highlights the possibility of a diffuse organ involvement different from the typical imaging pattern of nodular plasmacytoma lesions in soft tissues.
Medical subject headings
- Multiple Myeloma
- Kidney Neoplasms
- Kidney Cortex