Clinical and CT Findings of Small Bowel Obstruction Caused by Rice Cakes in Comparison with Bezoars

Overview

Journal Jpn J Radiol

Publisher Springer

Specialty Radiology

Date 2019 Jan 17

PMID 30649674

Citations 3

Authors

Shigehiro Sugimoto

Taro Shimono

Tohru Takeshita

Akira Yamamoto

Daisuke Shindo

Yukio Miki

Affiliations

Soon will be listed here.

Abstract

Purpose: Rice cakes have not been recognized as a cause of small bowel obstruction (SBO) worldwide. We compared clinical and CT findings of rice cake SBO versus SBO due to bezoars, the most common cause of food-induced SBO.

Methods: Twenty-four patients with rice cake SBO (n = 17) or bezoar SBO (n = 7) were retrospectively evaluated for clinical findings and the following multi-detector CT (MDCT) features: identification of the transition zone, presence of intraluminal lesions, degree of obstruction, and length and attenuation of obstructing materials. Categorical variables were compared by Fisher's exact test, and continuous variables by independent t test.

Results: None of the rice cake SBO patients required surgery, whereas 4/7 (57%) bezoar SBO patients underwent surgery. On MDCT, rice cake residues were recognized as well-defined intraluminal lesions of shorter length (29.8 ± 4.6 mm vs. 47.7 ± 10.8 mm for bezoars; p < 0.0001) and higher attenuation (106 ± 27.8 HU vs. - 62.8 ± 14.7 HU for bezoars; p < 0.0001).

Conclusions: Rice cake SBO patients did not require surgery. On MDCT, rice cake residues were significantly shorter and higher in attenuation than bezoars. These findings facilitate diagnosis and support the conservative management of rice cake SBO.

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