Ultrasonography of gastric volvulus: "Peanut sign"

We report a case of chronic gastric volvulus in which ultrasonography (US) was useful. An 81-year-old woman was hospitalized due to vomiting, and uppe r gastroduodenoscopy revealed that the stomach was spirally twisted and con stricted, An upper gastrointestinal barium study demonstrated an organoaxia l-mesenteroaxial combined type gastric volvulus. US showed constriction bet ween the dilated upper stomach body and the lower stomach body similar to a "peanut". Thereafter, the patient's vomiting stopped and follow-up US demo nstrated that the constriction of the stomach was loosened. Therefore, we b elieve that this characteristic US sign paralleled the symptoms of the pati ent.