Table 1.

Characteristics of synchronous tumors found on CT colonography

Tumor number	Localization of obstructing tumor	Localization of synchronous tumor	TNM stage of obstructing tumor	TNM stage of synchronous tumor	Modification of surgical plan	Type of surgery performed
#1	Sigmoid colon	Cecum	T3N0	T1N0	Yes	Sigmoid resection and ileocecal resection
#2	Sigmoid colon	Hepatic flexure	T4N1	T2N0	Yes	Subtotal colectomy
#3	Sigmoid colon	Descending colon	T4N1	T2N1	Yes	Extended left-sided hemi colectomy
#4	Rectum	Sigmoid colon	T3N0	Advanced adenoma 2 cm	No	Low anterior resection
#5	Hepatic flexure	Cecum	T3N0	Advanced adenoma 3 cm	No	Right-sided hemi colectomy
#6	Rectum	Sigmoid colon	T3N0	Advanced adenoma 2 cm	No	Low anterior resection