Schwartz J M, Holliday R A, Breda S D
Department of Radiology, New York University Medical Center, NY 10016.
J Comput Assist Tomogr. 1988 Sep-Oct;12(5):869-70. doi: 10.1097/00004728-198809010-00028.
Computed tomography is currently used as an adjunct to oral contrast studies in the diagnosis and management of esophageal and posterior pharyngeal perforation. We present the CT findings of a surgically proven iatrogenic pyriform sinus perforation. Although extravasation of contrast material was depicted by pharyngography, the site of perforation could not be demonstrated. Knowledge of the pattern of spread of pharyngeal neoplasms was essential for correct interpretation of CT. In our patient the perforation was caused by traumatic passage of an Ewald tube, an unusual and previously unreported complication.
计算机断层扫描目前作为口服对比剂研究的辅助手段，用于食管和咽后壁穿孔的诊断和处理。我们展示了一例经手术证实的医源性梨状窝穿孔的CT表现。尽管通过咽造影显示了造影剂外渗，但穿孔部位无法显示。了解咽部肿瘤的扩散模式对于正确解读CT至关重要。在我们的患者中，穿孔是由伊瓦尔德管的创伤性插入引起的，这是一种不寻常且此前未报道过的并发症。
