The buccal-pharynx cavity was large, and its mucosa was composed of stratified squamous epitheliums with a few goblet cells. 口咽腔大，粘膜上皮为复层鳞状上皮，内含少量杯状细胞。
Conclusions The modified UPPP not only extends the nasopharynx cavity but also avoids postoperative complications and improves the effects of UPPP. 结论改良悬雍垂腭咽成形术可充分扩大咽腔空间，避免并发症，提高手术疗效。
