Situated behind and at the upper part.
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pos·tero·su·pe·ri·or .päs-tə-rō-su̇-'pir-ē-ər adj posterior and superior in position or direction
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pos·tero·su·pe·ri·or (pos″tər-o-soo-pērґe-ər) situated posteriorly and superiorly.Medical dictionary. 2011.