Marsot-Dupuch K, Meyer B, Tubiana J M
Praticien Hospitalier, Service de Radiologie, Paris.
J Radiol. 1988 Feb;69(2):93-7.
The non neoplastic diseases of the nasopharynx are uncommon especially in adults. Cyst of pharyngeal bursa or Thornwald cyst are located in the supero-posterior nasopharynx, in the location of the normal pharyngeal bursa which open into the pharyngeal mucosa. When it persists, a cyst can develop if the orifice becomes occluded. The have a characteristic and distinctive C.T. and N.M.R. aspects, as presented in this paper, well circumscribed round midline mass, sparing muscles lateral as well as posterior, with an high signal in T1 and T2 N.M.R. sequences. No discussion with other pathologic conditions is useful because carcinoma, adenoid and pharyngeal polyp, or Killian's polyps haven't this configuration.
鼻咽部的非肿瘤性疾病并不常见，尤其是在成年人中。咽囊囊肿或桑德瓦尔德囊肿位于鼻咽部的后上方，即正常咽囊通向咽黏膜的位置。如果其开口堵塞且持续存在，就会形成囊肿。正如本文所呈现的，它们在CT和核磁共振成像上有特征性且独特的表现，即中线处边界清晰的圆形肿块，不累及外侧及后方的肌肉，在T1和T2核磁共振序列中呈高信号。与其他病理情况进行鉴别没有意义，因为癌、腺样体、咽息肉或基利安息肉没有这种形态。
