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International consensus guidelines for scoring the histopathological growth patterns of liver metastasis
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2017 (English)In: British Journal of Cancer, ISSN 0007-0920, E-ISSN 1532-1827, Vol. 117, no 10, p. 1427-1441Article in journal (Refereed) Published
Abstract [en]

Background: Liver metastases present with distinct histopathological growth patterns (HGPs), including the desmoplastic, pushing and replacement HGPs and two rarer HGPs. The HGPs are defined owing to the distinct interface between the cancer cells and the adjacent normal liver parenchyma that is present in each pattern and can be scored from standard haematoxylin-and-eosin-stained (H&E) tissue sections. The current study provides consensus guidelines for scoring these HGPs.

Methods: Guidelines for defining the HGPs were established by a large international team. To assess the validity of these guidelines, 12 independent observers scored a set of 159 liver metastases and interobserver variability was measured. In an independent cohort of 374 patients with colorectal liver metastases (CRCLM), the impact of HGPs on overall survival after hepatectomy was determined.

Results: Good-to-excellent correlations (intraclass correlation coefficient >0.5) with the gold standard were obtained for the assessment of the replacement HGP and desmoplastic HGP. Overall survival was significantly superior in the desmoplastic HGP subgroup compared with the replacement or pushing HGP subgroup (P=0.006).

Conclusions: The current guidelines allow for reproducible determination of liver metastasis HGPs. As HGPs impact overall survival after surgery for CRCLM, they may serve as a novel biomarker for individualised therapies.

Place, publisher, year, edition, pages
NATURE PUBLISHING GROUP , 2017. Vol. 117, no 10, p. 1427-1441
Keywords [en]
liver metastasis, colorectal cancer, breast cancer, vessel co-option, angiogenesis, tumour croenvironment, prognostic factor
National Category
Cancer and Oncology
Identifiers
URN: urn:nbn:se:umu:diva-142243DOI: 10.1038/bjc.2017.334ISI: 000414550300005OAI: oai:DiVA.org:umu-142243DiVA, id: diva2:1164580
Available from: 2017-12-11 Created: 2017-12-11 Last updated: 2018-06-09Bibliographically approved

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Nyström, Hanna

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CiteExportLink to record
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Citation style
  • apa
  • ieee
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  • de-DE
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  • nn-NO
  • nn-NB
  • sv-SE
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More languages
Output format
  • html
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  • asciidoc
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