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Fouad MMB, Fouad K, Ibraheim SMN. Assessment of Intraparenchymal Injection of 1% Patent Blue Dye in the Upper Outer Quadrant of the Breast to Identify Sentinel Lymph Node in Early Retro-Areolar Breast Cancer in Women: A Tertiary Centre Experience in Egypt. World J Surg 2022; 46:829-835. [PMID: 34994838 DOI: 10.1007/s00268-021-06421-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/26/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND Sentinel lymph node biopsy is the gold standard for axillary assessment of patients with clinically node negative breast cancer. The current internationally accepted methods comprise of the usage of either a radioactive tracer, vital stains or the combination of both. However, in developing countries radioactive tracer is not widely used due to its high cost and limited availability. In addition, the classic retro-areolar blue dye injection has a high failure rate. OBJECTIVE Our study aimed to assess the efficacy of patent blue dye injection in the upper outer quadrant of the breast after validation by concurrent usage of radioactive nanocolloid, in comparison with the classic retro-areolar injection in identifying the sentinel node. METHODS A randomized control study involving 279 patients randomly divided into two groups. In group A lateral injection of 1% patent blue dye (validated by radioactive nanocolloid) was used, while subdermal patent blue dye injection in the retro-areolar space was performed in group B. RESULTS The new technique showed the promising results with lower failure rate (3.4%) in comparison with the classic retro-areolar patent blue injection (13.7%). CONCLUSIONS The lateral injection technique can be result in comparable results to the combination technique with the added benefit of being widely available and a cheaper option especially in developing countries.
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Affiliation(s)
- Mina M B Fouad
- General Surgery Department, Kasr Al Aini teaching hospital, Cairo University, 18 A, North road, Nottingham, NG116AD, UK.
| | | | - Sandy M N Ibraheim
- Radiology department, Kasr Al Aini Teaching Hospital, Cairo University, Nottingham, UK
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Magnoni F, Corso G, Gilardi L, Pagan E, Massari G, Girardi A, Ghidinelli F, Bagnardi V, Galimberti V, Grana CM, Veronesi P. Does failed mapping predict sentinel lymph node metastasis in cN0 breast cancer? Future Oncol 2021; 18:193-204. [PMID: 34882010 DOI: 10.2217/fon-2021-0470] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Aims: The clinical significance of nonvisualized sentinel lymph nodes (non-vSLNs) is unknown. The authors sought to determine the incidence of non-vSLNs on lymphoscintigraphy, the identification rate during surgery, factors associated with non-vSLNs and related axillary management. Patients & methods: A total of 30,508 consecutive SLN procedures performed at a single institution from 2000 to 2017 were retrospectively studied. Associations between clinicopathological factors and the identification of SLNs during surgery were assessed. Results: Non-vSLN occurred in 525 of the procedures (1.7%). In 73.3%, at least one SLN was identified intraoperatively. Nodal involvement was only significantly associated with SLN nonidentification (p < 0.001). Conclusion: Patients with non-vSLN had an increased risk for SLN metastasis. The detection rate during surgery was consistent, reducing the amount of unnecessary axillary dissection.
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Affiliation(s)
- Francesca Magnoni
- Breast Cancer Surgery Division, European Institute of Oncology, IRCCS, Milan, 20141, Italy
| | - Giovanni Corso
- Breast Cancer Surgery Division, European Institute of Oncology, IRCCS, Milan, 20141, Italy.,Departmentof Oncology & Hemato-Oncology, University of Milan, Milan, 20122, Italy
| | - Laura Gilardi
- Division of Nuclear Medicine, European Institute of Oncology, IRCCS, Milano, 20141, Italy
| | - Eleonora Pagan
- Department of Statistics & Quantitative Methods, University of Milan-Bicocca, Milan, 20126, Italy
| | - Giulia Massari
- Breast Cancer Surgery Division, European Institute of Oncology, IRCCS, Milan, 20141, Italy
| | - Antonia Girardi
- Breast Cancer Surgery Division, European Institute of Oncology, IRCCS, Milan, 20141, Italy
| | | | - Vincenzo Bagnardi
- Department of Statistics & Quantitative Methods, University of Milan-Bicocca, Milan, 20126, Italy
| | - Viviana Galimberti
- Breast Cancer Surgery Division, European Institute of Oncology, IRCCS, Milan, 20141, Italy
| | - Chiara Maria Grana
- Division of Nuclear Medicine, European Institute of Oncology, IRCCS, Milano, 20141, Italy
| | - Paolo Veronesi
- Breast Cancer Surgery Division, European Institute of Oncology, IRCCS, Milan, 20141, Italy.,Departmentof Oncology & Hemato-Oncology, University of Milan, Milan, 20122, Italy
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Manfredi M, De Zani D, Chiti LE, Ferrari R, Stefanello D, Giudice C, Pettinato V, Longo M, Di Giancamillo M, Zani DD. Preoperative planar lymphoscintigraphy allows for sentinel lymph node detection in 51 dogs improving staging accuracy: Feasibility and pitfalls. Vet Radiol Ultrasound 2021; 62:602-609. [PMID: 34131982 PMCID: PMC8518895 DOI: 10.1111/vru.12995] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 03/24/2021] [Accepted: 03/31/2021] [Indexed: 01/01/2023] Open
Abstract
Sentinel lymph node (SLN) mapping is the current gold standard for the oncological staging of solid malignancies in humans. This prospective observational study describes the feasibility and the limits of preoperative lymphoscintigraphy for SLN detection in dogs with spontaneous malignancies and the improvements in staging accuracy. Client‐owned dogs with confirmed malignant neoplasia and absence of distant metastasis were prospectively enrolled. Lymphoscintigraphy was performed after the peritumoral injection of Technetium‐99m labeled nanocolloids. Regional dynamic and static images were acquired, with and without masking of the injection site with a lead shield. The dogs were then subjected to surgery for tumor excision and SLN extirpation. Intraoperative SLN detection was performed by combining methylene blue dye and a dedicated gamma probe. Overall, 51 dogs with a total of 60 solid malignant tumors were enrolled. Lymphoscintigraphy identified at least one SLN in 57 of 60 cases (95%). The SLN did not always correspond to the regional lymph node (35/57, 61.4%). The use of a lead shield, masking the injection site, markedly improved the SLN visibility. The median time of SLN appearance was 11.4 ± 9.3 min. No side effects were observed. Preoperative lymphoscintigraphy allows for SLN detection in dogs and can improve staging accuracy by either identifying the SLN in a different lymphosome than clinically expected or discriminating the draining node in uncertain cases. The combined use of preoperative and intraoperative techniques is recommended to increase the SLN detection rate.
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Affiliation(s)
- Martina Manfredi
- Department of Veterinary Medicine, Università degli Studi di Milano, Lodi, Italy
| | - Donatella De Zani
- Centro Clinico-Veterinario e Zootecnico-Sperimentale, Università degli Studi di Milano, Lodi, Italy
| | - Lavinia Elena Chiti
- Department of Veterinary Medicine, Università degli Studi di Milano, Lodi, Italy
| | - Roberta Ferrari
- Department of Veterinary Medicine, Università degli Studi di Milano, Lodi, Italy
| | - Damiano Stefanello
- Department of Veterinary Medicine, Università degli Studi di Milano, Lodi, Italy
| | - Chiara Giudice
- Department of Veterinary Medicine, Università degli Studi di Milano, Lodi, Italy
| | - Vincenzina Pettinato
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Università degli Studi di Milano, Milano, Italy
| | - Maurizio Longo
- Department of Veterinary Medicine, Università degli Studi di Milano, Lodi, Italy
| | - Mauro Di Giancamillo
- Department of Veterinary Medicine, Università degli Studi di Milano, Lodi, Italy
| | - Davide Danilo Zani
- Department of Veterinary Medicine, Università degli Studi di Milano, Lodi, Italy
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Chiti LE, Stefanello D, Manfredi M, Zani DD, De Zani D, Boracchi P, Giudice C, Grieco V, Di Giancamillo M, Ferrari R. To map or not to map the cN0 neck: Impact of sentinel lymph node biopsy in canine head and neck tumours. Vet Comp Oncol 2021; 19:661-670. [PMID: 33886154 DOI: 10.1111/vco.12697] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 04/08/2021] [Accepted: 04/10/2021] [Indexed: 12/24/2022]
Abstract
Tumour stage is a prognostic indicator for canine malignant head and neck tumours (MHNT). However, consensus is lacking on nodal staging in the absence of clinically apparent nodal disease (cN0 neck). This prospective observational study aims to determine the diagnostic accuracy of radiopharmaceutical and blue dye for sentinel lymph node biopsy (SLNB), to assess the correspondence between sentinel lymph node (SLN) and clinically expected regional lymph node (RLN) and the impact on staging of the procedure in dogs with MHNT and cN0 neck. Twenty-three dogs with MHNT and cN0 neck underwent tumour excision and SLNB guided by preoperative lymphoscintigraphy and intraoperative gamma-probe and blue dye. Diagnostic performances and detection rate were calculated. Correspondence between SLN and RLN, number of nodes excised, histopathological status of the SLN and complications related to the procedure were recorded. The mapping technique identified at least one SLN in 19/23 dogs, with a detection rate of 83%. The SLN did not correspond to the RLN in 52% of dogs. Multiple nodes were removed in 61% of dogs. At histopathology, eight (42%) dogs had SLN+, of which four differed from the RLN. Only minor self-limiting complications occurred in five (22%) dogs. Radiopharmaceutical and blue dye guidance is accurate (sensitivity 88.9%; specificity 100%) for SLNB in dogs with MHNT and cN0 and allowed the extirpation of unpredictable and/or multiple SLN with minimal morbidity. Incorporation of SLNB in the management of MHNT is desirable to correctly stage the cN0 neck, owing the unpredictability of the lymphatic drainage.
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Affiliation(s)
- Lavinia E Chiti
- Dipartimento di Medicina Veterinaria, Università degli Studi di Milano, Milan, Italy
| | - Damiano Stefanello
- Dipartimento di Medicina Veterinaria, Università degli Studi di Milano, Milan, Italy
| | - Martina Manfredi
- Dipartimento di Medicina Veterinaria, Università degli Studi di Milano, Milan, Italy
| | - Davide D Zani
- Dipartimento di Medicina Veterinaria, Università degli Studi di Milano, Milan, Italy
| | - Donatella De Zani
- Dipartimento di Medicina Veterinaria, Università degli Studi di Milano, Milan, Italy
| | - Patrizia Boracchi
- Dipartimento di Scienze Cliniche e di Comunità, Laboratorio di Statistica Medica, Biometria ed Epidemiologia "G.A. Maccacaro", Università degli Studi di Milano, Milan, Italy
| | - Chiara Giudice
- Dipartimento di Medicina Veterinaria, Università degli Studi di Milano, Milan, Italy
| | - Valeria Grieco
- Dipartimento di Medicina Veterinaria, Università degli Studi di Milano, Milan, Italy
| | - Mauro Di Giancamillo
- Dipartimento di Medicina Veterinaria, Università degli Studi di Milano, Milan, Italy
| | - Roberta Ferrari
- Dipartimento di Medicina Veterinaria, Università degli Studi di Milano, Milan, Italy
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