Table 1. Distribution of age and sex with histopathology of the primary lesion.

Histopathology	41-50 years		51-60 years		61-70 years		71-80 years
	Male	Female	Male	Female	Male	Female	Male	Female
Squamous cell carcinoma	5 (16.1%)	5 (16.1%)	5 (16.1%)	5 (16.1%)	4 (12.9%)	2 (6.5%)	1 (3.2%)	1 (3.2%)
Adenocarcinoma	1 (3.2%)	1 (3.2%)	1 (3.2%)	0	0	0	0	0