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(A) Coronal CT image of 19-year-old woman showing unilateral right foramen rotundum (arrowhead, she had no left foramen rotundum) and the vidian canals (thick arrow); (B) coronal CT image of 68-year-old man showing unilateral left foramen rotundum (arrowhead, he had no right foramen rotundum) and the vidian canals (thick arrow).
