[Does incidence of sentinel lymph node metastasis increase after diagnostic manipulation in women with breast cancer?]. / Aumenta l'incidenza di metastasi nel linfonodo sentinella dopo manipolazione diagnostica in donne con cancro della mammella?

503 patients were retrospectively evaluated to assess whether a previous needle or core biopsy, or surgical surgical excision of the primary tumor are associated with passive dislodgment of tumor cells in the sentinel lymph node, as reported in recent publications. We could not identify any increased incidence of sentinel lymph node micrometastases or isolated tumor cells after diagnostic manipulation of the primary tumor.