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A pesquisa do linfonodo sentinela para o câncer de mama na prática clínica do ginecologista brasileiro

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TLDR
O estudo histopatologico dos linfonodos axilares continua sendo o melhor parâmetro para a avaliacao do prognostico do câncer de mama, reduzindo a morbidade cirurgica nas pacientes com resultado negativo.
Abstract
O estudo histopatologico dos linfonodos axilares continua sendo o melhor parâmetro para a avaliacao do prognostico do câncer de mama. No entanto, como em cerca de 80% das pacientes com tumores de ate 2 cm os linfonodos nao apresentam comprometimento neoplasico, foi proposta, ha alguns anos, a disseccao do linfonodo sentinela, reduzindo a morbidade cirurgica nas pacientes com resultado negativo. Recentemente, esta tecnica cirurgica disseminou-se no Brasil, mas existem duas questoes importantes: qual a probabilidade de resultado falso-negativo, ou seja, deixar de identificar um linfonodo comprometido pelo câncer, e se o subestadiamento pelo resultado falso-negativo exporia a paciente ao risco de recidiva axilar ou mesmo metastase a distância, pela utilizacao de terapia cirurgica e adjuvante menos agressiva. A revisao da literatura mostra que a taxa de falsos-negativos varia de 5 a 10%, sendo o principal fator associado a falta de experiencia do cirurgiao. Embora as recidivas axilares sejam raras, nao e ainda possivel avaliar o efeito a longo prazo de deixar de retirar linfonodos comprometidos, devido ao curto periodo de seguimento. Portanto, a recomendacao e que o linfonodo sentinela so seja realizado por cirurgioes com experiencia comprovada pela pequena taxa de resultados falso-negativos.

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Sentinel lymph node biopsy in early breast cancer surgery – Working with the risks of vital blue dye to reap the benefits

TL;DR: A retrospective review was undertaken of the different levels of anaphylaxis associated with vital dyes as well as their benefits in SLNB to ensure that SLNB remains a highly sensitive procedure.
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Drenaje Linfático de la Mama: desde la Teoría a la Práctica Quirúrgica

TL;DR: Este trabajo describe en detalles los aspectos anatomicos en relacion a la lactancia y correlaciona el drenaje linfatico axilar y linfonofos extra-axilares y se muestra la aplicacion de estos conocimientos teoricos en the practica quirurgica.
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Metastasis of Mammary Carcinoma in Bitches: Evaluation of the Sentinel Lymph Node Technique

TL;DR: Assessment of the sentinel lymph node biopsy accuracy in female dogs suffering from mammary carcinoma revealed that the SLNB technique offers high sensitivity in the early detection of metastases, allowing higher precision in the staging of oncological patients and, therefore, offering higher chances of survival.
Journal ArticleDOI

Experimental orthotopic breast cancer as a model for investigation of mechanisms in malignancy and metastasis to the lymph nodes

TL;DR: An optimal orthotopic cancer model for breast cancer in the immunocompetent Swiss mouse is established, describing the detailed microanatomy of the mammary glands, the sentinel lymph node and lymphatic mapping, evaluating histopathological changes and characterizing the tumor by computed microtomography and interleukins expression.

Avaliação da imagem corporal e da função sexual em mulheres com linfedema após tratamento cirúrgico de câncer de mama Body image and sexual function evaluation in women with lymphedema after surgery of breast neoplasm

TL;DR: In this paper, the authors evaluated body image and sexual function on women after surgery treatment of breast neoplasm that developed to lymphedema, and found that women's sexual function was related to body image.
References
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Journal ArticleDOI

Randomized Multicenter Trial of Sentinel Node Biopsy Versus Standard Axillary Treatment in Operable Breast Cancer: The ALMANAC Trial

TL;DR: Sentinel lymph node biopsy is associated with reduced arm morbidity and better quality of life than standard axillary treatment and should be the treatment of choice for patients who have early-stage breast cancer with clinically negative nodes.
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The risk of axillary relapse after sentinel lymph node biopsy for breast cancer is comparable with that of axillary lymph node dissection: a follow-up study of 4008 procedures

TL;DR: Axillary LR after SLNBiopsy, with or without ALND, is a rare event, and this low relapse rate supports wider use of SLN biopsy for breast cancer staging, and there is a low-risk subset ofSLN-positive patients in whom completion ALND may not be required.