Radiotracer re-injection in case of sentinel node non-visualization in a breast cancer patient

Document Type : Case Report


Nuclear Medicine Research Center, Mashhad University of Medical Sciences, Mashhad, Iran


We reported a 35 year old breast cancer patient who was referred to our nuclear medicine department for sentinel node mapping. She was planned to undergo mastectomy and lymphatic mapping. A dose of Tc-99m Phytate was injection in the peri-areolar region in an intra-dermal fashion. Two hours post-injection no sentinel node was visible in the axilla. Due to a high liver uptake, inadvertent intra-vascular injection was suspected and another dose of the radiotracer was injected in the breast. Lymphoscintigraphy two minutes post-injection showed an axillary sentinel node. Our case underscores the importance of second radiotracer injection in case of sentinel node non-visualization.


Main Subjects

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