Fat density lesion adjacent to hepatic flexure - do i have cancer?

No: Fat density lesions adjacent to the hepatic flexure probably is in the region of the retrohepatic area representing the region of the kidney. Depending on size and possibility of a perirenal fatty tumor, at times one finds liposarcomas arising in this region. If there is a question, a core biopsy should be performed to rule out a fatty tumor undergoing changes.