医源性筛窦异物误诊为筛窦占位1例

患者,男,37岁,主因左侧鼻塞、流脓涕伴左眼溢泪1年于2012年1月29日收入我院。既往有左眼泪囊炎病史25年，10多年前曾于当地医院行在侧泪囊手术（手术方法及治疗过程不详），术后患者溢泪症状消失。

latrogenic foreign body of the ethmoid sinus misdiagnosed as tumor

Foreign bodies in the paranasal sinuses are rare. Foreign bodies in the ethmoid sinus are easily misdiagnosd as tumor. There is no typical display in CT and MRI tests. The described case showed the misdiagno sis of an ethmoid foreign body as tumour on the basis of CT and MRI results. It should be emphasised that the tumour diagnosis should be based on further physical and histopalhological examinations and not only on the resuhs of CT and MRI tests.