CLINICALHISTORY
50-year-oldpatientwith48hoursofworseningleft-sidedchestpain,persistentnausea,andvomiting.
Figure95A:Plainradiographofthechestshowsaretrocardiacair-filledmass,correspondingtothegastricantrumabovethediaphragm(arrow).
Figure95B:Coronalcontrast-enhancedCTimageoftheupperabdomendemonstratesadistendedstomachwithabnormalorientation.Thegastroesophageal(GE)junction(blackarrow)liesinferiortotheleftdiaphragmandbelowthegastricantrum(asterisk),representingamesenteroaxialvolvulus.Thegreatercurvatureremainstotheleftofthelessercurvature.
Figure95C:CoronalCTimageoftheupperabdomenanteriortoFigure95Bdemonstratesthegastricantrum(asterisk)intheleftupperabdomenandnondilatedproximalduodenum(arrows)superiortothegastricfundus.
Figure95D:SagittalCTimageoftheabdomenshowsherniationofthedilatedgastricantrum(asterisk)intothethorax.Thegastricantrumandpylorus(arrowhead)islocatedsuperiortotheGEjunction(arrow),