Mercedes-Benz sign

Imaging Aorta A term referring to a normal landmark—a cross section of the aortic valve—seen on the short axis basal view ‘ME AV SAX’ in transoesophageal echocardiography. The aortic valve is nestled between the left atrium (closest to the probe), the right atrium (at the examiner’s left) and the left ventricular outflow tract)
Imaging Gallbladder The finding of gallstones on plain films of the abdomen; gallstones contain internal gas which fills the spaces left by cholesterol crystals and appears as stellate—triradiate translucent areas, fancifully likened to the emblem of namesake automobile

Mercedes-Benz sign

Imaging The finding of gallstones on plain films of the abdomen; gallstones contain gas which fills the spaces left by cholesterol crystals and appears as stellate–triradiate translucent areas, fancifully likened to an automobile logo
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The car had an almost glitzy ambience with illuminated Mercedes-Benz signs on the door sills (optional extra), just to remind you of what you were driving.
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