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The aquarium in the right heart

We presented a case with massive hepatic portovenous gas (HPVG) and gastric emphysema, probably due to increased intraluminal pressure in the stomach after bagging and noninvasive ventilation. There are multiple microbubbles in the inferior vena cava, right atrium and right ventricle. There has been only one case report ever published showing the similar features of the “aquarium sign” in the right heart in a patient with intussusception. We believe our case is a good illustration of this extremely rare entity in echocardiography.