Computed tomography diagnosis of transomental hernia
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Recently, computed tomography (CT) has been greatly helpful in the diagnosis of small bowel obstruction (SBO) to preoperatively reveal the cause, including extrinsic lesion such as adhesion, intrinsic lesion, intraluminal lesion, internal or external hernia, volvulus, and intussusception . However, the diagnosis of transomental hernia is sometimes difficult. We are pleased to read the interesting article entitled “Displacement of the transverse colon is a highly specific computed tomography finding for the preoperative diagnosis of a transomental hernia” by Ito et al. in the Japanese Journal of Radiology . This study demonstrated the accuracy in the diagnosis of transomental hernia using the unique quantitative evaluation method, proportion of transverse colon loops posterior to dilated intestinal loops (PTPI). However, we would like to point out several concerns.
First, the distinction between the ascending colon and transverse colon, and the transverse colon and descending...