highly significantP<0.009
There was no significant variation with the distribution of sex but there was a highly significant variation of the SCC among different age groups (P<0.009) where the highest incidence was reported in patients above 70 years old (12/34 cases, 35.3%) followed by 40-70 years (six cases in the age range of 41-50 years, five cases in the age range of 51-60 years, and six cases in the age range of 61-70 years) (Table 3 ).