A Curious "Mickey Mouse" Sign: Physiological FAPI Uptake in Uterus Didelphys on 68 Ga-FAPI PET/CT.
Sharjeel Usmani, Khulood Al Riyami, Aisha Ismaila et al.
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From the abstract
A 42-year-old woman with invasive lobular carcinoma of the left breast underwent staging with 68 Ga-FAPI PET/CT, which demonstrated intense uptake in the primary breast lesion and ipsilateral nodal metastases. Incidentally, symmetric intense pelvic tracer uptake was identified, corresponding on fused PET/CT to 2 distinct uterine horns consistent with uterus didelphys.