Intestinal pseudo-obstruction: An uncommon condition with heterogeneous etiology and unpredictable outcome

Figure 4 Full-thickness serial biopsies stained with haematoxylin-eosin (× 100) from the removed colon showing no ganglionic cells in the last 7 cm of the rectum. Marked depletion of ganglionic cells (arrow) and hypertrophy of the external muscular layer were identified in sigmoid (A) and descending colon (B).