Intraluminal obturation of tumor nature |
17 (33%) |
Usually, these tumors require surgery and chemotherapy/radiotherapy. |
Extraluminal obturation (compression) from a tumor formation |
4 (8%) |
These patients considered with tumor formation from the colon after incomplete colonoscopy to be correctly diagnosed with tumors of the stomach or ovaries. |
Stenotic changes of a non-tumor nature |
11 (21%) |
Stenotic changes of a non-tumor nature include cases of Crohn’s disease and mucosal edema. The reasons for incomplete FCS are entirely inconsistent with the results of CT colonography. |
Congenital diseases with changes in the length of the lumen of the intestinal loops (dolichocolon, megacolon, Hirschsprung) |
7 (13%) |
In 7 patients, the presence of dolicholone with exhaustion of the device was assumed to be the cause of incomplete FCS. CT colonography was normal in 4 of them, and in 3 patients, CT colonography established carcinoma of the cecum and carcinoma of the rectum, respectively. |
Subjective factors |
13 (25%) |
Pain, poor preparation, contraindications. |