case_images: PMC11652913_01
case_images: (A) Axial PET-CT image demonstrates uptake in the outer right breast along the implant capsule (red arrow). (B) There is mild uptake within a right axillary lymph node (yellow arrow).
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case_images: Within 2 weeks of discharge from the hospital, the patient underwent (N)-13 ammonia PET-CT myocardial perfusion imaging (MPI) with Regadenoson (pharmacologic stress agent) and was incidentally found to have a focus of uptake in the outer right breast with an enlarged right axillary lymph node (Fig. 1).
case_images: Craniocaudal view of the right breast (A) and exaggerated craniocaudal implant displaced view (B) of the right breast demonstrate a silicone implant without mammographic correlate for the area of uptake in the outer breast seen on PET.
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case_images: She underwent diagnostic mammogram, which did not reveal any definite correlate for the activity on PET (Fig. 2).
case_images: Grayscale ultrasound image (A) demonstrates an irregular, hypoechoic mass (red arrow) measuring approximately 2.2x0.8x1.9 cm along the implant capsule. Power doppler image (B) demonstrates the mass (white arrow) with no significant vascularity.
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case_images: fig0003
case_images: Ultrasound was performed on the same day, which revealed a mass located adjacent to the implant capsule (Fig. 3).