Uterine leiomyomas (fibroids) are common and benign hormone-dependent tumors of the uterus, often coinciding with atypical menstrual bleeding, urinary incontinence, and lower abdominal pain. The PET tracer 18 F-NaF has been used to study metastatic and benign bone disorders, but its potential use in investigating the molecular alterations of extraosseous tissues and tumors has not been fully investigated. In this report, we present a calcifying uterine leiomyoma incidentally detected on 18 F-NaF PET/CT scans in a postmenopausal 61-year-old woman and follow-up image 2 years after, highlighting the potential of 18 F-NaF in monitoring both the molecular and structural progression of uterine leiomyomas.
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