主动脉夹层动脉瘤(以下简称夹瘤)并非罕见。国内仅报告50余例,其原因可能与漏、误诊有关。该病生前诊断率一般较低,如北京友谊医院收治10例,死亡的9例中生前确诊者仅1例。提高对该病的诊断水平是治疗的关键。本文报告两例,并对误诊原因及诊断要点探讨如下: 例1、男,24岁。因上腹部与胸骨后胀痛伴呕吐1小时入院。患者于入院前3小时饱餐,2小时后突感胸骨后及上腹部剧痛、呕吐、烦躁不安、全 Aortic dissection aneurysm (hereinafter referred to as xeroma) is not uncommon. More than 50 cases reported only in China, the reason may be related to leakage, misdiagnosis. The pre-diagnosis rate is generally low, such as Beijing Friendship Hospital, 10 cases were treated, 9 cases of death in pre-life diagnosed only 1 case. To improve the diagnosis of the disease is the key to treatment. This article reports two cases, and the reasons for misdiagnosis and diagnosis are discussed as follows: Example 1, male, 24 years old. Due to the upper abdomen and sternum with pain and vomiting 1 hour after admission. Patients in the 3 hours before admission full meal, 2 hours after the sudden sensation of the chest and upper abdominal pain, vomiting, irritability, all