van Rensburg L J, Nortje C J, Wood R E
Department of Maxillofacial Radiology, University of Stellenbosch, South Africa.
Br J Orthod. 1995 May;22(2):179-83. doi: 10.1179/bjo.22.2.179.
A case of pneumosinus dilatans of the posterior ethmoidal region is presented. The condition known as pneumosinus dilatans is discussed, as are accessory ethmoidal air cells with respect to their most common localization and radiographic appearance. The diagnostic imaging features of this condition are described and a recommendation of views to adequately delineate this disorder are given. The importance of an adequate and thorough review of the cephalometric radiograph for pathologic conditions is stressed.
本文报告一例后筛窦区域的鼻窦扩张症病例。文中讨论了鼻窦扩张症这一病症，以及筛窦气房的常见定位和影像学表现。描述了该病症的诊断性影像学特征，并给出了能充分显示此病症的投照体位建议。强调了对头颅测量X线片进行充分且全面的病理情况评估的重要性。
