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LETTER TO EDITOR
Year : 2020  |  Volume : 19  |  Issue : 4  |  Page : 445

Techniques for sentinel node detection in breast cancer


1 Department of Medical Imaging, The Prince Charles Hospital, Chermside; Faculty of Medicine, University of Queensland, Herston, Australia
2 Department of General Surgery, The Prince Charles Hospital, Chermside, Queensland, Australia

Date of Submission30-Mar-2020
Date of Decision28-May-2020
Date of Acceptance28-May-2020
Date of Web Publication14-Sep-2020

Correspondence Address:
Dr. Joseph C Lee
Department of Medical Imaging, The Prince Charles Hospital, Chermside, Queensland 4032
Australia
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DOI: 10.4103/wjnm.WJNM_38_20

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How to cite this article:
Lee JC, Tam DP. Techniques for sentinel node detection in breast cancer. World J Nucl Med 2020;19:445

How to cite this URL:
Lee JC, Tam DP. Techniques for sentinel node detection in breast cancer. World J Nucl Med [serial online] 2020 [cited 2021 Jan 17];19:445. Available from: http://www.wjnm.org/text.asp?2020/19/4/445/295168

Dear Editors,

The fundamental aim of the study by Siddique et al.[1] is sensible and noble. Nuclear medicine and surgical doctors, alike, can benefit immensely from understanding the relative efficacies of sentinel node mapping using radionuclide single-photon emission computed tomography lymphoscintigraphy (SPECT-CT LS) followed by gamma probe detection and the patent blue dye (PBD) technique. The assumption shall be made that they injected both the radiocolloid and the PBD in the same site. Of course, intuition would suggest that different outcomes are yielded if the injection site(s) were different, but this issue should not be encountered if using the same injection site(s).

Even so, there is a substantial discrepancy between the techniques even assuming the same injection site(s). This was also found with other injection techniques, not just subareolar as in this study: peritumoral[2] and intratumoral (intralesional).[3] So how do the authors recommend we approach this problem? It is a little unclear from the most recent guidelines[4],[5] which we should use and when. If sentinel nodes are negative with radionuclide SPECT-CT LS, do we only then need to use PBD? Is that what [Figure 1] should imply?

In our experience, we have found numerous cases where lymph nodes were radioactive but not blue and vice versa lymph nodes which were blue but not radioactive. We have identified malignancies in both groups. Would dual mapping – using both SPECT-CT LS and PBD methods – be the most ideal approach?

Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.

 
   References Top

1.
Siddique M, Hassan A, Nawaz MK, Bashir H, Chaudhry MZ. Comparison between sentinel lymph node hybrid scintigraphy and blue dye technique in breast cancer patients: An institutional experience. World J Nucl Med 2020;19:21-7.  Back to cited text no. 1
  [Full text]  
2.
Hill AD, Tran KN, Akhurst T, Yeung H, Yeh SD, Rosen PP, et al. Lessons learned from 500 cases of lymphatic mapping for breast cancer. Ann Surg 1999;229:528-35.  Back to cited text no. 2
    
3.
Doting MH, Jansen L, Nieweg OE, Piers DA, Tiebosch AT, Koops HS, et al. Lymphatic mapping with intralesional tracer administration in breast carcinoma patients. Cancer 2000;88:2546-52.  Back to cited text no. 3
    
4.
Cox CE, Pendas S, Cox JM, Joseph E, Shons AR, Yeatman T, et al. Guidelines for sentinel node biopsy and lymphatic mapping of patients with breast cancer. Ann Surg 1998;227:645-51.  Back to cited text no. 4
    
5.
Giammarile F, Alazraki N, Aarsvold JN, Audisio RA, Glass E, Grant SF, et al. The EANM and SNMMI practice guideline for lymphoscintigraphy and sentinel node localization in breast cancer. Eur J Nucl Med Mol Imaging 2013;40:1932-47.  Back to cited text no. 5
    




 

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