Inyección subareolar: potencial causa de falso negativo en la biopsia selectiva de ganglio centinela en cáncer de mama

Sentinel node biopsy has become the standard practice in lymph node staging in breast cancer in early stages. However, uncertainty remains regarding the best method of radiotracer/dye injection. Currently, the subareolar injection is being widely used because of its technical simplicity and higher rates of SN location versus the so-called deep techniques (peritumoral, intratumoral) that require greater specialization and greater use of resources in the non-palpable lesions.

We present a case of a discrepancy between the two techniques that could have caused a false negative.