ABSTRACT
Background: Oral squamous cell carcinoma (OSCC) is a commonly occurring head and neck cancer. It has a high prevalence, and is associated with a high mortality rate. OSCC occurs due to many etiological factors, but smoking and alcohol remain the most common risk factors. The histological grading of tumors has been used to predict the clinical behaviour of OSCC. Broder’s initiated quantitative grading in cancer. Anneroth’s and Hansen developed another grading system for grading of OSCC’s. With this background, a study was undertaken to compare between Anneroth’s & Broder’s grading systems in oral squamous cell carcinoma in relation to histopathological prognostic factors. Material & Methods: A retrospective study was carried out on 50 formalin fixed paraffin embedded tissue blocks of the confirmed cases of Oral squamous cell carcinoma in the archives of department of oral pathology, Govt. Dental College & Hospital, Srinagar. The cases were evaluated on the basis of Broder’s & Anneroth’s grading systems for OSCC & the comparison of the systems was made pertaining to histopathological prognostic parameters. Results: In our study according to Anneroth’s system maximum cases comes under grade III while in Broder’s system maximum cases are in grade I & II. Conclusion: Anneroth’s classification provides us a detailed analysis of grading the cases according to scoring of each parameter. Thus, it is more informative than Broder’s grading system.
ABSTRACT
Objectives: Morphologic detection of connective tissue fiber changes in oral squamous cell carcinoma (OSCC) using special stains remains less documented. The aims of the present study were to study the collagen and elastic fibers in different stages of OSCC and to correlate these changes with two grading systems ‑ Broder’s and Bryne’s. Study Design: Forty‑eight cases of OSCC were studied using hematoxylin and eosin, Verhoeff’s ‑ Van Gieson stain for elastic fibers and picrosirius red stain for collagen fibers. The changes were compared with all the grades of carcinoma. Normal mucosa was taken as control. Results: Statistical analysis using Chi‑square and ANOVA, showed significant association between the grades of carcinoma and extracellular matrix changes. Greenish‑yellow collagen fibers were found to be significantly increased in the poorly differentiated/Grade 3 cases (P < 0.0001) where as well‑differentiated/Grade 1 cases showed predominantly reddish‑orange and yellowish‑orange birefringence of collagen fibers. Chi‑square analysis showed a significant amount of fragmented pattern of elastic fibers in poorly differentiated OSCC (χ2 = 104.45, P = 0.009)/Grade 3 OSCC (χ2 = 94.81, P = 0.016). Conclusion: The study of the connective tissue stromal changes can be used as an adjunct to histological grading and thereby helping the surgeon to determine the amount of marginal clearance.