In a message dated 4/13/2005 10:12:42 AM Central Standard Time, 
[email protected] writes:
He must have had his tumor located low enough down the colon to be 
found, most are up high, where the colonoscopy the tubes can`t get.

Are you sure you aren't talking about a sigmoidoscopy?  They can't get up to 
the higher tract of the colon.  But I was under the impression that a 
colonoscopy was able to check everything.      MA