Which finding supports situs solitus?

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Multiple Choice

Which finding supports situs solitus?

Normal visceral arrangement, or situs solitus, has the stomach bubble on the left, the heart apex pointing to the left (levocardia), and the liver on the right. This left–left–right pattern is the standard orientation in fetal anatomy. When you see stomach on the left, heart apex on the left, and liver on the right, you’re observing the expected arrangement, which confirms situs solitus. If any of these organs appear on the opposite side, that would suggest a different situs pattern, such as a mirror-image (situs inversus) or heterotaxy, rather than situs solitus.

Normal visceral arrangement, or situs solitus, has the stomach bubble on the left, the heart apex pointing to the left (levocardia), and the liver on the right. This left–left–right pattern is the standard orientation in fetal anatomy. When you see stomach on the left, heart apex on the left, and liver on the right, you’re observing the expected arrangement, which confirms situs solitus. If any of these organs appear on the opposite side, that would suggest a different situs pattern, such as a mirror-image (situs inversus) or heterotaxy, rather than situs solitus.

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