Figure 3d. Pedunculated polyp (14 mm) in 74-year-old man. (a) Transverse CT colonographic image shows a lobulated mass (arrow) in the descending colon. (b) Coronal CT colonographic image shows excellent z-axis resolution; the findings confirm the smooth pedunculated morphologic structure of the lesion (arrow). (c) Three-dimensional volume-rendered endoluminal CT image shows the morphologic structure and the stalk (black arrow) and head (white arrow) of the pedunculated polyp. (d) Corresponding colonoscopic image shows the stalk (black arrow) and head (white arrow) of the pedunculated polyp.