Delayed Sentinel Lymph Node Biopsy in Ductal Cancer in Situ

"SLND performed after surgery for DCIS or other pre-invasive lesions, where final pathology showed invasive breast cancer. Patients have received SPIO in the breast at the first operation, prior to dissection and resection and the SLN has already been marked with SPIO. These SLNs are to be removed.~SLND is divided into the following steps:~1. Transcutaneous signal~2. Incision in the axilla (skin, subcutaneous fat and fascia) and In situ signal~3. SLN identification in situ~4. SLN excision and signal ex vivo~5. Background axillary counts. For step d the radioactive counts are registered for each SLN that has been excised. When the procedure is completed successfully with SPIO, then background axillary isotope counts are registered and, if present, SLND continues as described above with the isotope as primary tracer."

"SLND performed after surgery for DCIS or other pre-invasive lesions, where final pathology showed invasive breast cancer. Patients will be injected with radioisotope in the operated breast before SLND according to standard of care. Any SLNs detected with this intervention are to be removed.~SLND is divided into the following steps:~1. Transcutaneous signal~2. Incision in the axilla (skin, subcutaneous fat and fascia) and In situ signal~3. SLN identification in situ~4. SLN excision and signal ex vivo~5. Background axillary counts. For step d the magnetic counts are registered for each SLN that has been excised. When the procedure is completed successfully with the isotope, then background axillary iSPIO counts are registered and, if present, SLND continues as described above with the SPIO as primary tracer."