PMC4410590_01
Endoscopic examination of case 1. Mucosal friability, loss of vascular pattern, erythema and edema circumferentially are shown at the rectum.
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F1
A diagnosis of left-sided UC was made on the basis of colonoscopic findings and confirmed by the typical histological features of biopsy samples (fig. 1).
Ultrasonography of the transverse colon in case 1. A thin wall and dilated transverse colon (with the dotted line measuring 65 mm) suggest megacolon.
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F2
UC (at 23 weeks and 3 days of pregnancy) showed a thin wall with dilatation of the colonic lumen, consistent with megacolon (fig. 2). Urgent surgery was indicated for the colitis that was unresponsive to medical therapy with suspected toxic megacolon.
PMC4410590_02
Intraoperative findings of case 2. The pregnant uterus is smaller than fist size. Arrow 1 shows the 14-week pregnant uterus. Arrow 2 shows the resected distal rectal stump.
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F3
Total colectomy with Hartmann's procedure and end ileostomy was performed as initial surgery without interruption of the pregnancy (fig. 3).