Fractal analysis differentiation of nuclear and vascular patterns in hepatocellular carcinomas and hepatic metastasis
Vol. 52 No. 3 Suppl., 2011
This supplement was not sponsored by Outside Organizations.
ROMANIAN JOURNAL of MORPHOLOGY and EMBRYOLOGY
C. T. Streba, D. Pirici, C. C. Vere, L. Mogoanta, Violeta Comanescu, I. Rogoveanu
Hepatocellular carcinoma (HCC) currently represents the fifth most common cancer worldwide, while being the third leading cause of cancer death. Fractal analysis is a novel tool used in quantitative and qualitative image assessment. Vascular patterns and cellular nuclei particularities in tumoral pathology make ideal candidates for this technique. Our aim was to apply fractal analysis in quantifying nuclear chromatin patterns and vascular axels in order to identify differences between images of primary HCC, liver metastasis (LM) and surrounding normal liver tissue. Formalin-fixed, paraffin-embedded tissue sections from 40 cases of HCC and 40 LM of various origins were used. We performed Hematoxylin staining for nuclear chromatin as well as immunohistochemical staining for vascular patterns. High-resolution images were captured; nuclear and vascular morphologies were assessed on binarized skeleton masks using the fractal box counting method. Analysis was performed using the free, public domain Java-based image processing tool, ImageJ, which provided the fractal dimensions (FDs) for each studied element. Statistical analysis was performed using the ANOVA test with Bonferroni post-tests and t-tests for paired samples. Fractal analysis of vascular patterns clearly differentiated between tumoral tissue and normal surrounding tissue (p<0.01). Further analysis of nuclear FDs improved the specificity of these results, providing clear differentiation between pathological and normal tissue (p<0.01). When comparing primary HCC images with metastatic formations, we encountered statistically significant differences in nuclear chromatin assessment. However, blood vessels had a higher FD in primary tumors when compared with liver metastasis (p<0.05) and also allowed for a differentiation between primary liver tumors with and without neurodifferentiation. Fractal analysis represents a potent tool for discriminating between tumoral and non-tumoral tissue images. It provides accurate, quantifiable data, which can be easily correlated with the pathology at hand. Primary and metastatic liver tissue can be differentiated to some extent, however further studies, possibly including other variables (cellular matrix for instance) are needed in order to validate the method.
Corresponding author: Costin Teodor Streba, MD, PhD candidate, e-mail: costinstreba@gmail.com
Download PDF Fractal analysis differentiation of nuclear and vascular patterns in hepatocellular carcinomas and hepatic metastasis PDFROMANIAN JOURNAL of MORPHOLOGY and EMBRYOLOGY
Mihaela Mitroi, Alina Capitanescu, Claudia Valentina Georgescu, Carmen Aurelia Mogoanta, Camelia Popescu, Monica Georgescu, G. Mitroi, Elena Ionita
We investigated the expression of cytokeratins 7 (CK7) and 20 (CK20) in nasal polyps on a group of 106 patients with chronic rhinosinusitis with nasal polyposis (45 women - 42% and 61 men - 58%) who benefited from surgical procedures. Harvested biological material was analyzed in the pathology laboratory through two methods: histopathological and immunohistochemical analysis. Classical histopathological method of processing the tissues initially fixed in 10% formalin was used. The tissues were then processed by paraffin impregnation, sectioned and stained with Hematoxylin-Eosin. The immunohistochemical method was based on soluble immunoenzymatic complexes - LSAB/HRP (labeled Streptavidin Biotin) method. We used DAKO LSAB 2 System HRP (Universal DAKO Labeled Streptavidin Biotin 2 System Horseradish Peroxidase). The expressions of CK7 and CK20 in nasal polyps were analyzed.
Corresponding author: Mihaela Mitroi, Associate Professor, e-mail: mhlmitroi@yahoo.com
Download PDF Expression pattern of CK7 and CK20 in nasal polyps, at patients with chronic rhinosinusitis with nasal polyposis PDF
Download contents
Journal archive
- vol. 65 no. 2, 2024
- vol. 65 no. 1, 2024
- vol. 64 no. 4, 2023
- vol. 64 no. 3, 2023
- vol. 64 no. 2, 2023
- vol. 64 no. 1, 2023
- vol. 63 no. 4, 2022
- vol. 63 no. 3, 2022
- vol. 63 no. 2, 2022
- vol. 63 no. 1, 2022
- vol. 62 no. 4, 2021
- vol. 62 no. 3, 2021
- vol. 62 no. 2, 2021
- vol. 62 no. 1, 2021
- vol. 61 no. 4, 2020
- vol. 61 no. 3, 2020
- vol. 61 no. 2, 2020
- vol. 61 no. 1, 2020
- vol. 60 no. 4, 2019
- vol. 60 no. 3, 2019
- vol. 60 no. 2, 2019
- vol. 60 no. 1, 2019
- vol. 59 no. 4, 2018
- vol. 59 no. 3, 2018
- vol. 59 no. 2, 2018
- vol. 59 no. 1, 2018
- vol. 58 no. 4, 2017
- vol. 58 no. 3, 2017
- vol. 58 no. 2, 2017
- vol. 58 no. 1, 2017
- vol. 57 no. 4, 2016
- vol. 57 no. 3, 2016
- vol. 57 no. 2 Suppl., 2016
- vol. 57 no. 2, 2016
- vol. 57 no. 1, 2016
- vol. 56 no. 4, 2015
- vol. 56 no. 3, 2015
- vol. 56 no. 2 Suppl., 2015
- vol. 56 no. 2, 2015
- vol. 56 no. 1, 2015
- vol. 55 no. 4, 2014
- vol. 55 no. 3 Suppl., 2014
- vol. 55 no. 3, 2014
- vol. 55 no. 2 Suppl., 2014
- vol. 55 no. 2, 2014
- vol. 55 no. 1, 2014
- vol. 54 no. 4, 2013
- vol. 54 no. 3 Suppl., 2013
- vol. 54 no. 3, 2013
- vol. 54 no. 2, 2013
- vol. 54 no. 1, 2013
- vol. 53 no. 4, 2012
- vol. 53 no. 3 Suppl., 2012
- vol. 53 no. 3, 2012
- vol. 53 no. 2, 2012
- vol. 53 no. 1, 2012
- vol. 52 no. 4, 2011
- vol. 52 no. 3 Suppl., 2011
- vol. 52 no. 3, 2011
- vol. 52 no. 2, 2011
- vol. 52 no. 1 Suppl., 2011
- vol. 52 no. 1, 2011
- vol. 51 no. 4, 2010
- vol. 51 no. 3, 2010
- vol. 51 no. 2, 2010
- vol. 51 no. 1, 2010
- vol. 50 no. 4, 2009
- vol. 50 no. 3, 2009
- vol. 50 no. 2, 2009
- vol. 50 no. 1, 2009
- vol. 49 no. 4, 2008
- vol. 49 no. 3, 2008
- vol. 49 no. 2, 2008
- vol. 49 no. 1, 2008
- vol. 48 no. 4, 2007
- vol. 48 no. 3, 2007
- vol. 48 no. 2, 2007
- vol. 48 no. 1, 2007
- vol. 47 no. 4, 2006
- vol. 47 no. 3, 2006
- vol. 47 no. 2, 2006
- vol. 47 no. 1, 2006
- vol. 46 no. 4, 2005
- vol. 46 no. 3, 2005
- vol. 46 no. 2, 2005
- vol. 46 no. 1, 2005
- vol. 45 no. CI, 2004