Ma L D, Jones B, Lazenby A J, Douglas T, Bulte J W
Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins Medical Institutions, Baltimore, MD 21287.
Radiology. 1994 Jun;191(3):747-9. doi: 10.1148/radiology.191.3.8184056.
Plain radiographs and computed tomographic scans obtained in a severely neutropenic patient with acute lymphoblastic leukemia and cytomegalovirus-associated enterocolitis revealed a pattern of prolonged mucosal adherence of oral contrast agent to the small bowel. This pattern was seen as long as 16 weeks after administration of contrast agent and has been seen previously only in patients who have received bone marrow transplants. Two sets of intestinal biopsy specimens contained crystals that coated denuded mucosa at the site of ulceration and later were trapped within the lamina propria. Electron diffraction and energy-dispersive radiographic analysis showed that these crystals were composed of barium sulfate.
在一名患有急性淋巴细胞白血病和巨细胞病毒相关性小肠结肠炎的严重中性粒细胞减少患者中获得的普通X线片和计算机断层扫描显示，口服造影剂在小肠黏膜的附着时间延长。这种模式在给予造影剂后长达16周仍可见，且此前仅在接受骨髓移植的患者中见过。两组肠道活检标本含有晶体，这些晶体覆盖在溃疡部位的剥脱黏膜上，随后被困在固有层内。电子衍射和能量色散射线分析表明，这些晶体由硫酸钡组成。
