Iwamuro Masaya, Miyashima Yuichi, Yoshioka Takahiro, Murata Toshihiro, Miyabe Yoshio, Kawai Yoshinari, Urata Haruo, Shiraha Hidenori, Okada Hiroyuki, Yamamoto Kazuhide
Department of Gastroenterology, Onomichi Municipal Hospital, Onomichi, Hiroshima 722-8503,
Acta Med Okayama. 2014 Dec;68(6):369-74. doi: 10.18926/AMO/53026.
A 67-year-old Japanese man underwent enterotomy because of enterolith ileus. Component analysis by infrared spectroscopy revealed that the enterolith was composed of a high concentration of deoxycholic acid. We further analyzed and compared the ultrastructure of the enterolith and a commercially available powdered form of deoxycholic acid by means of scanning electron microscopy and energy dispersive X-ray spectroscopy. Energy dispersive X-ray spectroscopy analysis revealed that the ratios of carbon and oxygen in the enterolith were equal to those in the deoxycholic acid powder. Scanning electron microscopy analysis showed rectangular prism-shaped particles on the surface of the enterolith. This structure was similar to that of the deoxycholic acid powder. The surgically removed enterolith had a twisted and coiled appearance. Possible mechanisms underlying the formation of this unique form are discussed.
一名67岁的日本男性因肠石性肠梗阻接受了肠切开术。红外光谱成分分析显示，肠石由高浓度的脱氧胆酸组成。我们通过扫描电子显微镜和能量色散X射线光谱进一步分析并比较了肠石和市售脱氧胆酸粉末的超微结构。能量色散X射线光谱分析显示，肠石中碳和氧的比例与脱氧胆酸粉末中的比例相等。扫描电子显微镜分析显示肠石表面有长方体形状的颗粒。这种结构与脱氧胆酸粉末的结构相似。手术切除的肠石呈扭曲盘绕状。本文讨论了这种独特形态形成的可能机制。
