Uncommon Metastases From Occult Breast Cancer Revealed by 18F-FDG and 68Ga-FAPI PET/CT
Weizhi Xu, Tinghua Meng, Qihang Shang, Yizhen Pang, Haojun Chen
Abstract
ABSTRACT: Metastases to gastrointestinal tract from breast cancer are very rare and can be diagnostically challenging. In this case, we reported 18 F-FDG and 68 Ga-FAPI PET/CT findings in a 54-year-old women with such uncommon metastases from breast cancer. Although the primary tumor of breast cancer remained radiologically occult, 68 Ga-FAPI PET/CT showed a far better tumor-to-background ratio than 18 F-FDG PET/CT for detecting the metastatic lesions, especially for detecting the retroperitoneal lymph node and rectal metastases.
Topics & Concepts
MedicineOccultLymph nodeBreast cancerRadiologyCancerPET-CTGastrointestinal tractNuclear medicinePositron emission tomographyPathologyInternal medicineAlternative medicinePeptidase Inhibition and AnalysisProtease and Inhibitor MechanismsCardiac Structural Anomalies and Repair