Woolley A L, Wimberly L T, Royal S A
Children's Hospital of Alabama, Birmingham 35216, USA.
Ear Nose Throat J. 1998 Feb;77(2):140-3.
Foreign bodies can present a diagnostic challenge to even the experienced surgeon. In one review of 200 surgical cases involving retained foreign bodies, one-third of the cases had been initially missed. Wooden foreign bodies in particular pose a challenge to the physician. In the review cited above, only 15% of wooden foreign bodies were well visualized on plain radiographs. Acutely, on computed tomography (CT) scans, wooden foreign bodies will usually mimic air. However, with time, the attenuation value of a wooden foreign body may increase as moisture is absorbed from the surrounding tissues. Once this occurs, the wooden foreign body may mimic fat, water or muscle. We present an interesting case of a wooden foreign body in the parotid gland in order to illustrate a common presentation of such a foreign body, to review current guidelines for their clinical and radiologic diagnosis, and to suggest strategies for the management of their unique complications.
异物甚至会给给诊断给经验丰富的外科医生带来诊断挑战。在一项对200例涉及残留异物的外科病例的回顾中，三分之一的病例最初被漏诊。特别是木质异物给医生带来了挑战。在上述回顾中，只有15%的木质异物在X线平片上能清晰显示。急性情况下，在计算机断层扫描（CT）上，木质异物通常类似空气。然而，随着时间推移，木质异物的衰减值可能会因从周围组织吸收水分而增加。一旦发生这种情况，木质异物可能类似脂肪、水或肌肉。我们展示一例腮腺内木质异物的有趣病例，以说明此类异物的常见表现，回顾其临床和放射学诊断的现行指南，并提出处理其独特并发症的策略。
