Premium
Analysis of histopathological and immunohistochemical differences of oral squamous cell carcinoma in young and old patients in Sri Lanka
Author(s) -
Siriwardena B. S. M. S.,
Tilakaratne A.,
Amaratunga E. A. P. D.,
Udagama M. N. G. P. K.,
Ogawa Ikuko,
Kudo Yasusei,
Takata Takashi,
Tilakaratne W. M.
Publication year - 2007
Publication title -
journal of oral pathology and medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 83
eISSN - 1600-0714
pISSN - 0904-2512
DOI - 10.1111/j.1600-0714.2007.00548.x
Subject(s) - proliferating cell nuclear antigen , medicine , grading (engineering) , immunohistochemistry , basal cell , pathology , histopathology , lymph node metastasis , metastasis , gastroenterology , cancer , biology , ecology
Background: Oral squamous cell carcinoma (OSCC) most commonly occurs in the middle‐aged and older individuals. The purpose of the present study was to evaluate the histopathological and immunohistochemical differences of the younger (<40 years) and the older (more than 50 years) groups. Methods: The histopathological parameters of 112 patients (younger 56 and older 56) were compared according to three grading systems (Broder JAMA 1920; 74 : 656, Anneroth et al. Scand J Dent Res 1987; 95 : 229, Bryne et al. J Pathol 1992; 166 : 375) and as individual histopathological parameters. Further, the expression of p53 and Proliferative Cell Nuclear Antigen (PCNA) index was also compared. Results: Although there was no significant difference between two groups regarding the three grading systems, a significantly higher number of nuclear aberrations was found in younger group ( P < 0.001). Interestingly, higher number of mitoses ( P < 0.05) and lymph node metastasis ( P < 0.05) were observed in the older group ( P < 0.05). Furthermore, significantly a higher PCNA index was found in the older group ( P < 0.005). Conclusions: Although tumours of the young patients showed more nuclear aberrations, OSCC of the older patients is proliferative and showed higher metastatic rate.