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. Author manuscript; available in PMC: 2016 Aug 1.
Published in final edited form as: Dig Dis Sci. 2015 Apr 14;60(8):2398–2407. doi: 10.1007/s10620-015-3645-5

Figure 3.

Figure 3

Colonic compliance in (A) healthy controls, (B) functional constipation/constipation-predominant irritable bowel syndrome and (C) diarrhea-predominant irritable bowel syndrome (IBS-D) control groups; and (D) patients with chronic megacolon. Note the markedly increased volume of the intracolonic balloon (10cm long) in patients with megacolon compared to controls. Note also the marked increase in intraballoon volume (>300mL) at 16mmHg distension in all except one patient with megacolon, which is observed in only one healthy control and in none of the IBS-D patients.