68Ga-FAPI PET/CT Visualized Benign Metastasizing Leiomyoma With Bone Invasion.

ABSTRACT: Benign metastasizing leiomyoma (BML) is a rare disease associated with pelvic leiomyoma. We report 18F-FDG and 68Ga-FAPI PET/CT findings in a 51-year-old woman with multiple BMLs. The mass in the abdominopelvic cavity and other metastatic lesions showed highly increased 68Ga-FAPI uptake, whereas uptake of 18F-FDG in those lesions was low. Our report demonstrates that 68Ga-FAPI PET/CT showed a different result in detecting BML to 18F-FDG PET/CT, and 68Ga-FAPI PET/CT may be a promising method for whole-body evaluate metastases.