Mean age of patients was 64,2±10,5 (23-95) and female to male ratio was 0.8. Most common tumor locations were rectum and sigmoid colon in both females (28,4%; 22,3%) and males (29,1%; 24,1%), respectively. Only 3,5% of cases were younger than 40 years old. According to invasion level, 2,7% cases were T1 (n=14), 25% T2 (n=131); 36% T3 (n=189); 36,4% T4 (n=191). Invasion level was significantly correlated with tumor necrosis (p=0,000), LVI (p=0,000), BVI (p=0,042), PNI (p=0,000), LN metastases (p=0,005). Mean value of TLN was 16,1 (0-68) and LNM was 2,36 (0-56). 43% of all cases had lymph node metastases. Mean number of LNM was associated with higher invasion levels; 1,70 for T2, 1,89 for T3 and 2,01 for T4. Increased mucin secretion was correlated with increased level of tumor invasion (p=0,037); 29% for T2, 44% for T3 and 38% for T4. Tumors located in the ascending and transverse colon had no mucinous component. Tumors located more distally had higher extracellular mucin secretion.