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Yet collagen fiber topology within desmoplasia is difficult to resolve in routine surgical pathology using standard microscopy, leaving potentially valuable structural cues untapped. Polychromatic polarization microscopy is presented as a practical approach to visualize collagen topology in daily workflow. Using H&E-stained sections and a standard microscope, the study characterizes differences across normal pancreas, chronic pancreatitis, and pancreatic ductal adenocarcinoma.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/polychromatic-polarization-microscopy-differentiates-collagen-fiber-signatures-in-benign-pancreatic-tissue-and-pancreatic-ductal-adenocarcinoma/435079/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/polychromatic-polarization-microscopy-differentiates-collagen-fiber-signatures-in-benign-pancreatic-tissue-and-pancreatic-ductal-adenocarcinoma/435079.png","ImageObject",300,407,{"name":92,"@type":93},"4398046744996","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-31","2026-09-29",true,{"@type":102,"interactionType":103,"userInteractionCount":24},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"Why is collagen fiber orientation considered prognostically important in pancreatic ductal adenocarcinoma?","Question",{"text":112,"@type":113},"The orientation of collagen fibers relative to malignant epithelium is linked to prognosis in tissues, with especially strong evidence in breast and pancreatic ductal adenocarcinoma.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What limits the use of standard diagnostic microscopy for collagen topology in desmoplasia?",{"text":117,"@type":113},"Collagen fibers within desmoplasia cannot be resolved with standard diagnostic microscopy, and existing visualization methods may lack the needed resolution or require resources that do not fit routine workflow.",{"name":119,"@type":110,"acceptedAnswer":120},"How does polychromatic polarization microscopy support collagen analysis in this study?",{"text":121,"@type":113},"It visualizes and describes differences in collagen topology across normal pancreas, chronic pancreatitis, and pancreatic ductal adenocarcinoma using a standard microscope with hematoxylin and eosin-stained sections.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},435079,1790829858,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":66,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":133,"file_id":134,"file_url":135,"file_type":136,"file_size":137,"view_count":24,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":46,"language":138,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":139,"faqs":140,"seo_title":141,"seo_description":67,"update_tm":142,"read_time":31,"preview_page_count":4},4398046744996,"Author Manuscript Author Manuscript Author Manuscript Author Manuscript  \n\n| | HHS Public Access\u003Cbr>Author manuscript\u003Cbr>Mod Pathol. Author manuscript; available in PMC 2026 January 05. |\n| --- | --- |\n\nPublished in final edited form as:  \nMod Pathol. 2025 August ; 38(8): 100768. doi:10.1016/j.modpat.2025.100768 .  \nPolychromatic Polarization Microscopy Differentiates Collagen Fiber Signatures in Benign Pancreatic Tissue and Pancreatic Ductal Adenocarcinoma  \nMahsa Chitsaza, Linlin Yanga, Rania Rayes-Dananb, Omid Savaric, Bin Lid, Michael Shribake, Kevin Eliceirif,g, Agnes Loefflerb,*  \na Department of Pathology, Cleveland Clinic Foundation, Cleveland, Ohio;  \nb Department of Pathology, MetroHealth Medical Center, Cleveland, Ohio;  \nc Department of Pathology, University Hospitals Cleveland Medical Center, Cleveland, Ohio; d Department of Engineering Science, University of Oxford, Oxford, United Kingdom;  \neMarine Biological Laboratory, Woods Hole, Massachusetts;  \nfCenter for Quantitative Cell Imaging, University of Wisconsin, Madison, Wisconsin; gMorgridge Institute for Research, Madison, Wisconsin  \nAbstract  \nThe orientation of collagen fibers in relation to malignant epithelium is known to carry prognostic information in a variety of tissues. The data are the strongest for breast and pancreatic ductaladenocarcinoma. However, information inherent in collagen fiber topology in malignant tissues remains untapped in daily surgical pathology practice, largely because collagen fibers within areas of desmoplasia cannot be resolved with standard diagnostic microscopy. The methodologies used to visualize collagen fiber orientation are either of insufficient resolution to consistently capture collagen fiber topology or require resources in time and money that do not fit into the daily surgical pathology workflow. Polychromatic polarization microscopy has the potential to bring collagen topology to the attention of pathologists during their routine work. It has been demonstrated to be equivalent to the gold standard methodology used to research collagen, second harmonic generation. We use polychromatic polarization microscopy to visualize and describe the differences in collagen topology in normal pancreas, chronic pancreatitis, and pancreatic ductaladenocarcinoma with a standard microscope, using hematoxylin and eosin-stained sections. In the  \nThis is an open access article under the CC BY-NC-ND license ([http://creativecommons.org/licenses/by-nc-nd/4.0/](http://creativecommons.org/licenses/by-nc-nd/4.0/)).  \n*[Corresponding author. aloeffler@metrohealth.org](Corresponding author. aloeffler@metrohealth.org) (A. Loeffler) .  \nAuthor Contributions  \nM.C., L.Y., K.E., B.L., and A.L. were involved with study concept and design as well as development of methodology. M.C. drafted the first version of the article, and all authors were involved with review and revision. O.S. was responsible for the identification of samples for analysis. Collection, analysis, and interpretation of data were performed by M.C., L.Y., R.R., and A.L. Technical and material support was provided by B.L., M.S., and K.E. All authors read and approved the final paper.  \nDeclaration of Competing Interest None reported.  \nEthics Approval and Consent to Participate  \nThis study was approved by the MetroHealth institutional review board 20–00968. Patient consent was not required for enrollment in this study.  \nAuthor Manuscript Author Manuscript Author Manuscript Author Manuscript  \nChitsaz et al. Page 2  \nprocess, we propose a lexicon with which to describe the morphologic characteristics of collagen in benign and malignant pancreatic tissues.  \nKeywords  \ncollagen; desmoplasia; pancreatic ductal adenocarcinoma; polychromatic polarization microscopy  \nIntroduction  \nCollagen alignment within the desmoplastic response to malignant growth is increasingly recognized as both pathophysiologically important in tumor progression and prognostically meaningful.1–11 Changes in ","cbCaipdM0ef7b222","https://ap.wps.com/l/cbCaipdM0ef7b222","pdf",4500568,"English","# Abstract\n# Keywords\n# Introduction","[{\"question\":\"Why is collagen fiber orientation considered prognostically important in pancreatic ductal adenocarcinoma?\",\"answer\":\"The orientation of collagen fibers relative to malignant epithelium is linked to prognosis in tissues, with especially strong evidence in breast and pancreatic ductal adenocarcinoma.\"},{\"question\":\"What limits the use of standard diagnostic microscopy for collagen topology in desmoplasia?\",\"answer\":\"Collagen fibers within desmoplasia cannot be resolved with standard diagnostic microscopy, and existing visualization methods may lack the needed resolution or require resources that do not fit routine workflow.\"},{\"question\":\"How does polychromatic polarization microscopy support collagen analysis in this study?\",\"answer\":\"It visualizes and describes differences in collagen topology across normal pancreas, chronic pancreatitis, and pancreatic ductal adenocarcinoma using a standard microscope with hematoxylin and eosin-stained sections.\"}]","Polychromatic Polarization Microscopy Differentiates Collagen Fiber Signatures in Benign Pancreatic Tissue and Pancreatic Ductal Adenocarcinoma | PDF",1790671748]