A Magnesium Oxide Bezoar

Abstract

A 75-year-old Japanese woman presented with nausea and appetite loss. Computed tomography showed a radiopaque substance in the stomach. Esophagogastroduodenoscopy revealed bezoars in the stomach, which were endoscopically retrieved. The bezoars were mainly composed of magnesium and oxide. Although bezoar formation associated with magnesium oxide consumption is infrequently encountered, the present case indicates that pharmacobezoar should be considered among the differential diagnoses in patients who demonstrate a radiopaque mass in the digestive tract and have a history of magnesium oxide use.

Radiopacity of sodium zirconium cyclosilicate on CT imaging

“…Previous of dental implants had noted that zirconium-based implants produced pronounced artifact when imaged with a CT scanner [5,6]. Furthermore, the patient had not received any substances by mouth which are known to appear radiopaque on imaging including his home as needed medication, magnesium hydroxide/aluminum hydroxide/simethicone in at least 48 h prior to the CT imaging which further solidifies that the radiopaque substance is likely the administered sodium zirconium cyclosilicate [7,8].…”

Stomach Bezoaris, Causes of Development, Diagnosis and Methods of Treatment

“…Phytobezoаr is the most common type of bezoar, which occurs in about 75 % of all types of bezoar, and is formed as a result of the use of a large number of bezorogenic products of plant origin, including grapes, persimmon (diospirobesoar), dates, figs, dogwood, cherries and sweet cherries, corn, pineapple [1,2,3]. Such types are also distinguished: lactobesoir -accumulation of lactose and casein (is common for children) [4]; pharmacobezoir -caused by the use of tableted drugs [5], which include: aluminum hydrochloride gel, intestinal aspirin, sucralfate, cholestyramine, nifedipine [6,7]; Sebobezoar -is formed by refractory animal fats in the form of fatty conglomerates, shellacobezoar (or pixo-or desmobezoar) -resins and bitumen [1,8]; trichobezoar -the aggregation of hair between the folds of the stomach [9,10], which occurs more often in women up to 30 years [11], is associated with mental illness and bad habits: trichotomomania (tearing hair) and trichophagia (swallowing hair), it can "tail" spread to the intestine (Rapunzel syndrome) [12]; polybezoar -mixed genesis [1,8].…”