Assertion: posterior nasopharynx | /r/HasProperty | fossa of rosenmüller
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Source sentences:
text: Nasopharyngeal carcinoma (NPC), or nasopharynx cancer, is the most common cancer originating in the nasopharynx, most commonly in the postero-lateral nasopharynx or pharyngeal recess (fossa of Rosenmüller), accounting for 50% of cases.