Journal of Oral and Maxillofacial Pathology

ONLINE ONLY ARTICLES - ORIGINAL ARTICLE
Year
: 2020  |  Volume : 24  |  Issue : 2  |  Page : 398--399

A quantitative and qualitative comparative analysis of collagen fibers to determine the role of connective tissue stroma in oral squamous cell carcinoma using special stains and polarized microscopy


Bharadwaj Bordoloi1, Safia Siddiqui2, Rohit Jaiswal2, Aanchal Tandon2, Amol Jain2, Rashmi Chaturvedi3 
1 Department of Dentistry, Garmur SDCH, Majuli, Assam, India
2 Department of Oral Pathology and Microbiology, Sardar Patel Postgraduate Institute of Dental and Medical Sciences, Lucknow, Uttar Pradesh, India
3 Department of Onco-pathology, LCI, Lucknow, Uttar Pradesh, India

Correspondence Address:
Safia Siddiqui
Department of Oral Pathology and Microbiology, Sardar Patel Postgraduate Institute of Dental and Medical Sciences, Lucknow, Uttar Pradesh
India

Background: Solid tumors such as oral squamous cell carcinoma (OSCC) are composed of malignant epithelial cells and the stroma in which these cells are dispersed. As the tumor progresses, the extracellular matrix undergoes dramatic morphological and architectural changes. Special stains make analysis easy and less erroneous by highlighting the area of interest and can be used to study these changes. Aim: The aim of the study was to analyze morphological changes in collagen fibers in various histological grades of OSCC using Masson's trichrome (MT) and Picrosirius red (PSR). Study Design: The study comprised 74 tissue samples, divided into two groups: Group I consisted of 63 cases of histologically proven OSCC (39 cases of well-differentiated squamous cell carcinoma [WDSCC], 17 moderately differentiated squamous cell carcinoma [MDSCC] and 7 poorly differentiated squamous cell carcinoma [PDSCC]) and Group II consisted of 11 cases of normal mucosa as controls. Materials and Methods: Sections were stained with hematoxylin and eosin, MT and PSR and observed under light and polarizing microscope, respectively. Statistical Analysis: ANOVA, Tukey's honestly significant difference post hoc multiple comparison test, Chi-square test and paired t-test were used for the statistical analysis. Results: As the grade of OSCC progressed, collagen fibers became thin, loosely packed and haphazard. The mean area fraction also decreased. They exhibited orange–red hue and strong birefringence in WDSCC, yellowish-orange hue and strong birefringence in MDSCC and greenish-yellow hue and weak birefringence in PDSCC. Conclusion: Initially, there is a reorganization of the collagen fibers in an attempt to prevent the invasion of tumor cells, but as cancer progresses, the stromal change enhances movement of the tumor cells within it, leading to metastasis.


How to cite this article:
Bordoloi B, Siddiqui S, Jaiswal R, Tandon A, Jain A, Chaturvedi R. A quantitative and qualitative comparative analysis of collagen fibers to determine the role of connective tissue stroma in oral squamous cell carcinoma using special stains and polarized microscopy.J Oral Maxillofac Pathol 2020;24:398-399


How to cite this URL:
Bordoloi B, Siddiqui S, Jaiswal R, Tandon A, Jain A, Chaturvedi R. A quantitative and qualitative comparative analysis of collagen fibers to determine the role of connective tissue stroma in oral squamous cell carcinoma using special stains and polarized microscopy. J Oral Maxillofac Pathol [serial online] 2020 [cited 2020 Nov 27 ];24:398-399
Available from: https://www.jomfp.in/article.asp?issn=0973-029X;year=2020;volume=24;issue=2;spage=398;epage=399;aulast=Bordoloi;type=0