Uterine metastasis from invasive ductal breast carcinoma mimicking fibroid features on MRI and detected by FDG PET/CT: role of SUVmax

Abstract

Breast cancer rarely metastasizes to the uterus. In particular, lobular carcinoma of the breast more commonly spreads to the uterus when compared to invasive ductal carcinoma. PET-CT can be a tool to differentiate between fibroids and metastasis based on the maximum standardized uptake value (SUVmax). The authors report the case of a 37-year-old female with invasive ductal carcinoma (IDC) having significantly fluorodeoxyglucose (FDG)-avid masses on PET-CT which were later found to be metastases.