Ex vivo search for sentinel node in postmastectomy specimens: should we use a transverse incision for mastectomy?
BACKGROUND
According to the concept of sentinel node (SN), the lymphatic pathway leading to SN should be regarded as the main and the most important lymphatic route from primary tumor to regional lymph nodes. We performed ex vivo blue-dye SN mapping in postmastectomy specimens to assess whether the main lymphatic tract leading to SN is completely removed during mastectomy. We assumed that ex vivo identification of SN may be possible only if the entire lymphatic tract leading to sentinel node is removed from within the postmastectomy specimen.


METHODS
Blue dye (1 mL) was injected intracutaenously, periareolary into each of 28 postmastectomy specimens. In 13 cases mastectomy was performed with the use of transverse skin incision; in 15 cases oblique incision was used.


RESULTS
The use of transverse skin incision during modified radical mastectomy allowed identification of the sentinel node and removal of the entire lymphatic pathway leading to sentinel node only in 4 of 15 cases (31%). Conversely, the use of oblique skin incision during modified radical mastectomy allowed identification of the sentinel node and removal of the entire lymphatic pathway leading to sentinel node in 12 of 15 cases (80%).


CONCLUSIONS
Our experiment revealed that the use of transverse skin incision during modified radical mastectomy may not be the best choice for breast cancer patients. In our opinion, this observation may be especially important for patients not irradiated postoperatively.
Department of Surgical Oncology, Medical University of Lodz, Lodz, Poland.
Arkadiusz
A
Jeziorski
Janusz
J
Piekarski
Dariusz
D
Nejc
Piotr
P
Pluta
Piotr
P
Sek
Adam
A
Bilski
Adam
A
Durczynski
Konrad
K
Wronski
D001943:Breast Neoplasms / Q000601:surgery*; D005260:Female; D006801:Humans; D008197:Lymph Node Excision; D008198:Lymph Nodes / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D008207:Lymphatic Metastasis; D015409:Mastectomy, Radical / Q000379:methods*; D009364:Neoplasm Recurrence, Local; D011446:Prospective Studies; D011877:Radionuclide Imaging; D012189:Retrospective Studies; D012394:Rosaniline Dyes; D021701:Sentinel Lymph Node Biopsy / Q000379:methods*; D013671:Technetium Tc 99m Sulfur Colloid
D012394:Rosaniline Dyes; D013671:Technetium Tc 99m Sulfur Colloid; C008769:sulfan blue