Zusammenfassung
Tumorbefallene Resektionsränder beim Mammakarzinom und beim duktalen Carcinoma in situ (DCIS) haben einen negativen Effekt auf die Prognose und gehen nachweislich mit einem erhöhten Lokalrezidivrisiko einher, sodass tumorfreie Resektionsränder eingefordert werden müssen. Ein mikroskopisch freier Schnittrand bei invasiven Karzinomen – „no cells on ink“ – auch mit begleitendem DCIS wird inzwischen als ausreichend angesehen. Dies gilt für alle Tumortypen und ist unabhängig vom Alter der Patientin. Die Voraussetzung stellt eine leitliniengerechte adjuvante Strahlen- und Systemtherapie dar. Dieses Vorgehen wird in den amerikanischen Leitlinien sowie von der Arbeitsgemeinschaft Gynäkologische Onkologie (AGO) bereits empfohlen, ist in der aktuell gültigen deutschen S3-Leitlinie von 2012 jedoch noch nicht verankert. Beim reinen DCIS sollte aktuell noch ein tumorfreier Schnittrand von 2 mm erreicht werden, wenn nach brusterhaltender Operation nachbestrahlt wird.
Abstract
Tumor affected surgical margins in breast cancer and ductal carcinoma in situ (DCIS) have a negative prognostic effect and are associated with an increased risk of local recurrence so that tumor-free resection margins are strongly recommended. A microscopically free resection margin in invasive breast carcinomas—“no cells on ink”—also with accompanying DCIS is currently considered sufficient. This refers to any tumor biology and is independent of the age of the patient. Postoperative guideline-recommended adjuvant radiotherapy and systemic therapy is required. This approach is already recommended in the American guidelines as well as in the recommendations of the German Arbeitsgemeinschaft Gynäkologische Onkologie (AGO). In the currently valid German S3 guideline from 2012 these recommendations are still missing. For DCIS only, a tumor-free resection margin of 2 mm should be achieved if radiotherapy is planned after breast-conserving surgery.
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I. Bekes, V. Fink, L. Schwentner, E. Leinert, K. Koretz und W. Janni geben an, dass kein Interessenkonflikt besteht.
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T. Fehm, Düsseldorf
W. Janni, Ulm
R. Kimmig, Essen
N. Maass, Kiel
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Bekes, I., Fink, V., Schwentner, L. et al. Schnittränder beim duktalen Carcinoma in situ und beim Mammakarzinom. Gynäkologe 49, 701–705 (2016). https://doi.org/10.1007/s00129-016-3934-x
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DOI: https://doi.org/10.1007/s00129-016-3934-x